diff --git a/dist/vue-router.js b/dist/vue-router.js
index 6b7214d47..74dc8c71f 100644
--- a/dist/vue-router.js
+++ b/dist/vue-router.js
@@ -185,13 +185,15 @@
 	  return true
 	}
 
-	function assert (condition, message) {
+	/*       */
+
+	function assert (condition     , message        ) {
 	  if (!condition) {
 	    throw new Error(("[vue-router] " + message))
 	  }
 	}
 
-	function warn (condition, message) {
+	function warn (condition     , message        ) {
 	  if (!condition) {
 	    typeof console !== 'undefined' && console.warn(("[vue-router] " + message))
 	  }
@@ -404,7 +406,7 @@
 	    beforeCreate: function beforeCreate () {
 	      if (this.$options.router) {
 	        this._router = this.$options.router
-	        this._router.app = this
+	        this._router.init(this)
 	        Vue.util.defineReactive(this, '_route', this._router.history.current)
 	      }
 	    }
@@ -1034,7 +1036,7 @@
 	        hash: hash
 	      }, undefined, location)
 	    } else {
-	      warn(("invalid redirect option: " + (JSON.stringify(redirect))))
+	      warn(false, ("invalid redirect option: " + (JSON.stringify(redirect))))
 	      return createRouteContext(null, location)
 	    }
 	  }
@@ -1104,7 +1106,7 @@
 	      (regexpCompileCache[path] = Regexp.compile(path))
 	    return filler(params || {}, { pretty: true })
 	  } catch (e) {
-	    assert(("missing param for " + routeMsg + ": " + (e.message)))
+	    assert(false, ("missing param for " + routeMsg + ": " + (e.message)))
 	    return ''
 	  }
 	}
@@ -1201,7 +1203,7 @@
 	    // deactivate guards
 	    extractLeaveGuards(deactivated),
 	    // global before hooks
-	    nomralizeGuards(this.router.options.beforeEach),
+	    this.router.beforeHooks,
 	    // activate guards
 	    activated.map(function (m) { return m.beforeEnter; })
 	  ).filter(function (_) { return _; })
@@ -1224,7 +1226,7 @@
 	History.prototype.updateRoute = function updateRoute (route     ) {
 	  this.current = route
 	  this.cb && this.cb(route)
-	  nomralizeGuards(this.router.options.afterEach).forEach(function (hook) {
+	  this.router.afterHooks.forEach(function (hook) {
 	    hook && hook(route)
 	  })
 	};
@@ -1271,16 +1273,6 @@
 	  }
 	}
 
-	function nomralizeGuards (guards                              )                   {
-	  if (!guards) {
-	    return []
-	  }
-	  if (typeof guards === 'function') {
-	    return [guards]
-	  }
-	  return guards
-	}
-
 	function extractLeaveGuards (matched                    )                   {
 	  return Array.prototype.concat.apply([], matched.map(function (m) {
 	    return Object.keys(m.components).map(function (key) {
@@ -1298,6 +1290,45 @@
 	  }).reverse())
 	}
 
+	/*       */
+
+	function saveScrollPosition (key        ) {
+	  if (!key) return
+	  window.sessionStorage.setItem(key, JSON.stringify({
+	    x: window.pageXOffset,
+	    y: window.pageYOffset
+	  }))
+	}
+
+	function getScrollPosition (key        )          {
+	  if (!key) return
+	  return JSON.parse(window.sessionStorage.getItem(key))
+	}
+
+	function getElementPosition (el         )         {
+	  var docRect = document.documentElement.getBoundingClientRect()
+	  var elRect = el.getBoundingClientRect()
+	  return {
+	    x: elRect.left - docRect.left,
+	    y: elRect.top - docRect.top
+	  }
+	}
+
+	function isValidPosition (obj        )          {
+	  return isNumber(obj.x) || isNumber(obj.y)
+	}
+
+	function normalizePosotion (obj        )         {
+	  return {
+	    x: isNumber(obj.x) ? obj.x : window.pageXOffset,
+	    y: isNumber(obj.y) ? obj.y : window.pageYOffset
+	  }
+	}
+
+	function isNumber (v     )          {
+	  return typeof v === 'number'
+	}
+
 	var genKey = function () { return String(Date.now()); }
 	var _key         = genKey()
 
@@ -1326,7 +1357,9 @@
 	    })
 
 	    if (expectScroll) {
-	      window.addEventListener('scroll', saveScrollPosition)
+	      window.addEventListener('scroll', function () {
+	        saveScrollPosition(_key)
+	      })
 	    }
 	  }
 
@@ -1372,30 +1405,25 @@
 	    if (!behavior) {
 	      return
 	    }
-
 	    assert(typeof behavior === 'function', "scrollBehavior must be a function")
 
-	    var position = getScrollPosition()
-	    var shouldScroll = behavior(to, from, isPop ? position : null)
-	    if (!shouldScroll) {
-	      return
-	    }
-
 	    // wait until re-render finishes before scrolling
 	    router.app.$nextTick(function () {
+	      var position = getScrollPosition(_key)
+	      var shouldScroll = behavior(to, from, isPop ? position : null)
+	      if (!shouldScroll) {
+	        return
+	      }
 	      var isObject = typeof shouldScroll === 'object'
-	      if (isObject && shouldScroll.x != null && shouldScroll.y != null) {
-	        position = shouldScroll
-	      } else if (isObject && shouldScroll.anchor) {
-	        var el = document.querySelector(to.hash)
+	      if (isObject && shouldScroll.selector) {
+	        var el = document.querySelector(shouldScroll.selector)
 	        if (el) {
-	          var docTop = document.documentElement.getBoundingClientRect().top
-	          var elTop = el.getBoundingClientRect().top
-	          position = {
-	            x: window.scrollX,
-	            y: elTop - docTop
-	          }
+	          position = getElementPosition(el)
+	        } else if (isValidPosition(shouldScroll)) {
+	          position = normalizePosotion(shouldScroll)
 	        }
+	      } else if (isObject && isValidPosition(shouldScroll)) {
+	        position = normalizePosotion(shouldScroll)
 	      }
 
 	      if (position) {
@@ -1426,7 +1454,7 @@
 	      _key = genKey()
 	      history.pushState({ key: _key }, '', url)
 	    }
-	    saveScrollPosition()
+	    saveScrollPosition(_key)
 	  } catch (e) {
 	    window.location[replace ? 'assign' : 'replace'](url)
 	  }
@@ -1436,19 +1464,6 @@
 	  pushState(url, true)
 	}
 
-	function saveScrollPosition () {
-	  if (!_key) return
-	  window.sessionStorage.setItem(_key, JSON.stringify({
-	    x: window.pageXOffset,
-	    y: window.pageYOffset
-	  }))
-	}
-
-	function getScrollPosition ()                            {
-	  if (!_key) return
-	  return JSON.parse(window.sessionStorage.getItem(_key))
-	}
-
 	var HashHistory = (function (History) {
 	  function HashHistory (router           , base         , fallback         ) {
 	    var this$1 = this;
@@ -1595,28 +1610,38 @@
 	}(History));
 
 	var VueRouter = function VueRouter (options) {
-	  var this$1 = this;
 	  if ( options === void 0 ) options              = {};
 
-	  assert(
-	    install.installed,
-	    "not installed. Make sure to call `Vue.use(VueRouter)` " +
-	    "before mounting root instance."
-	  )
-
 	  this.app = null
 	  this.options = options
+	  this.beforeHooks = []
+	  this.afterHooks = []
 	  this.match = createMatcher(options.routes || [])
 
 	  var mode = options.mode || 'hash'
-	  var fallback = mode === 'history' && !supportsHistory
-	  if (fallback) {
+	  this.fallback = mode === 'history' && !supportsHistory
+	  if (this.fallback) {
 	    mode = 'hash'
 	  }
 	  if (!inBrowser) {
 	    mode = 'abstract'
 	  }
+	  this.mode = mode
+	};
+
+	VueRouter.prototype.init = function init (app    /* Vue component instance */) {
+	    var this$1 = this;
+
+	  assert(
+	    install.installed,
+	    "not installed. Make sure to call `Vue.use(VueRouter)` " +
+	    "before creating root instance."
+	  )
 
+	  var ref = this;
+	    var mode = ref.mode;
+	    var options = ref.options;
+	    var fallback = ref.fallback;
 	  switch (mode) {
 	    case 'history':
 	      this.history = new HTML5History(this, options.base)
@@ -1631,26 +1656,33 @@
 	      assert(false, ("invalid mode: " + mode))
 	  }
 
-	  this.mode = mode
-
+	  this.app = app
 	  this.history.listen(function (route) {
 	    this$1.app._route = route
 	  })
 	};
 
+	VueRouter.prototype.beforeEach = function beforeEach (fn        ) {
+	  this.beforeHooks.push(fn)
+	};
+
+	VueRouter.prototype.afterEach = function afterEach (fn        ) {
+	  this.afterHooks.push(fn)
+	};
+
 	VueRouter.prototype.push = function push (location           ) {
 	  this.history.push(location)
 	};
 
 	VueRouter.prototype.replace = function replace (location           ) {
 	  this.history.replace(location)
-	  };
+	};
 
-	  VueRouter.prototype.go = function go (n        ) {
-	    this.history.go(n)
-	  };
+	VueRouter.prototype.go = function go (n      ) {
+	  this.history.go(n)
+	};
 
-	  VueRouter.prototype.back = function back () {
+	VueRouter.prototype.back = function back () {
 	  this.go(-1)
 	};
 
diff --git a/dist/vue-router.min.js b/dist/vue-router.min.js
index 4a210c11b..61017bdf0 100644
--- a/dist/vue-router.min.js
+++ b/dist/vue-router.min.js
@@ -1 +1 @@
-!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.VueRouter=e()}(this,function(){"use strict";function t(t,e,n){if(void 0===e&&(e="/"),"/"===t.charAt(0))return t;if("?"===t.charAt(0)||"#"===t.charAt(0))return e+t;var r=e.split("/");n&&r[r.length-1]||r.pop();for(var o=t.replace(/^\//,"").split("/"),i=0;i<o.length;i++){var a=o[i];"."!==a&&(".."===a?r.pop():r.push(a))}return""!==r[0]&&r.unshift(""),r.join("/")}function e(t){var e="",n="",r=t.indexOf("#");r>=0&&(e=t.slice(r),t=t.slice(0,r));var o=t.indexOf("?");return o>=0&&(n=t.slice(o+1),t=t.slice(0,o)),{path:t,query:n,hash:e}}function n(t){return t.replace(/\/\//g,"/")}function r(t,e){return!!e&&(t.path&&e.path?t.path===e.path&&t.hash===e.hash&&o(t.query,e.query):!(!t.name||!e.name)&&(t.name===e.name&&t.hash===e.hash&&o(t.query,e.query)&&o(t.params,e.params)))}function o(t,e){void 0===t&&(t={}),void 0===e&&(e={});var n=Object.keys(t),r=Object.keys(e);return n.length===r.length&&n.every(function(n){return String(t[n])===String(e[n])})}function i(t,e){return 0===t.path.indexOf(e.path)&&(!e.hash||t.hash===e.hash)&&a(t.query,e.query)}function a(t,e){for(var n in e)if(!(n in t))return!1;return!0}function c(t,e){if(!t)throw new Error("[vue-router] "+e)}function u(t,e){t||"undefined"!=typeof console&&console.warn("[vue-router] "+e)}function s(t,e){if(void 0===e&&(e={}),t){var n;try{n=p(t)}catch(t){u(!1,t.message),n={}}for(var r in e)n[r]=e[r];return n}return e}function p(t){var e=Object.create(null);return(t=t.trim().replace(/^(\?|#|&)/,""))?(t.split("&").forEach(function(t){var n=t.replace(/\+/g," ").split("="),r=F(n.shift()),o=n.length>0?F(n.join("=")):null;void 0===e[r]?e[r]=o:Array.isArray(e[r])?e[r].push(o):e[r]=[e[r],o]}),e):e}function h(t){var e=t?Object.keys(t).sort().map(function(e){var n=t[e];if(void 0===n)return"";if(null===n)return M(e);if(Array.isArray(n)){var r=[];return n.slice().forEach(function(t){void 0!==t&&(null===t?r.push(M(e)):r.push(M(e)+"="+M(t)))}),r.join("&")}return M(e)+"="+M(n)}).filter(function(t){return t.length>0}).join("&"):null;return e?"?"+e:""}function f(n,r,o){var i="string"==typeof n?{path:n}:n;if(i.name||i._normalized)return i;var a=e(i.path||""),c=a.path?t(a.path,r&&r.path,o):r&&r.path||"/",u=s(a.query,i.query),p=i.hash||a.hash;return p&&"#"!==p.charAt(0)&&(p="#"+p),{_normalized:!0,path:c,query:u,hash:p}}function l(t){if(t)for(var e,n=0;n<t.length;n++){if(e=t[n],"a"===e.tag)return e;if(e.children&&(e=l(e.children)))return e}}function d(t){d.installed||(d.installed=!0,Object.defineProperty(t.prototype,"$router",{get:function(){return this.$root._router}}),Object.defineProperty(t.prototype,"$route",{get:function(){return this.$root._route}}),t.mixin({beforeCreate:function(){this.$options.router&&(this._router=this.$options.router,this._router.app=this,t.util.defineReactive(this,"_route",this._router.history.current))}}),t.component("router-view",z),t.component("router-link",J))}function y(t){return t&&"object"==typeof t&&"default"in t?t.default:t}function v(t,e){return e={exports:{}},t(e,e.exports),e.exports}function m(t){var e=Object.create(null),n=Object.create(null);return t.forEach(function(t){g(e,n,t)}),{pathMap:e,nameMap:n}}function g(t,e,n,r,o){var i=n.path,a=n.name;c(null!=i,'"path" is required in a route configuration.');var u={path:w(i,r),components:n.components||{default:n.component},instances:{},name:a,parent:r,matchAs:o,redirect:n.redirect,beforeEnter:n.beforeEnter,meta:n.meta||{}};n.children&&n.children.forEach(function(n){g(t,e,n,u)}),n.alias&&(Array.isArray(n.alias)?n.alias.forEach(function(n){g(t,e,{path:n},r,u.path)}):g(t,e,{path:n.alias},r,u.path)),t[u.path]=u,a&&(e[a]=u)}function w(t,e){return t=t.replace(/\/$/,""),"/"===t[0]?t:null==e?t:n(e.path+"/"+t)}function b(t){function e(t,e,r){var o=f(t,e),i=o.name;if(i){var c=s[i];if(c)return o.path=k(c.path,o.params,'named route "'+i+'"'),n(c,o,r)}else if(o.path){o.params={};for(var u in a)if(x(u,o.params,o.path))return n(a[u],o,r)}return n(null,o)}function n(t,e,n){if(t&&t.redirect)return r(t,n||e);if(t&&t.matchAs)return o(t,e,t.matchAs);var i={name:e.name,path:e.path||"/",hash:e.hash||"",query:e.query||{},params:e.params||{},fullPath:j(e),matched:t?O(t):[]};return n&&(i.redirectedFrom=j(n)),Object.freeze(i)}function r(t,r){var o=r.query,i=r.hash,a=r.params,p=t.redirect,h=p&&"object"==typeof p&&p.name;if(h){var f=s[h];return c(f,'redirect failed: named route "'+h+'" not found.'),e({_normalized:!0,name:h,query:o,hash:i,params:a},void 0,r)}if("string"==typeof p){var l=E(p,t),d=k(l,a,'redirect route with path "'+l+'"');return e({_normalized:!0,path:d,query:o,hash:i},void 0,r)}return u("invalid redirect option: 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L(){et&&window.sessionStorage.setItem(et,JSON.stringify({x:window.pageXOffset,y:window.pageYOffset}))}function P(){if(et)return JSON.parse(window.sessionStorage.getItem(et))}function I(){var t=V();return"/"===t.charAt(0)||(U("/"+t),!1)}function V(){var t=window.location.href,e=t.indexOf("#");return e===-1?"":t.slice(e+1)}function B(t){window.location.hash=t}function U(t){var e=window.location.href.indexOf("#");window.location.replace(window.location.href.slice(0,e>=0?e:0)+"#"+t)}var z={name:"router-view",functional:!0,props:{name:{type:String,default:"default"}},render:function(t,e){var n=e.props,r=e.children,o=e.parent,i=e.data;i.routerView=!0;for(var a=o.$route,c=o._routerViewCache||(o._routerViewCache={}),u=0,s=!1;o;)o.$vnode&&o.$vnode.data.routerView&&u++,o._inactive&&(s=!0),o=o.$parent;i.routerViewDepth=u;var p=a.matched[u];if(!p)return t();var h=s?c[n.name]:c[n.name]=p.components[n.name],f=t(h,i,r);return 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