eclipse-che/che#11306 add 'travis' ci config

Signed-off-by: Yevhen Vydolob <yvydolob@redhat.com>

.gitignore

@@ -1,2 +1,3 @@
 node_modules
 yarn-error.log
+.DS_Store

.travis.yml

@@ -0,0 +1,49 @@
+sudo: required
+language: node_js
+node_js: '8'
+git:
+  depth: 1
+cache:
+  yarn: true
+  directories:
+  - extensions/eclipse-che-theia-plugin/node_modules
+  - node_modules
+branches:
+  only:
+  - master
+env:
+  global:
+    - CXX=g++-4.8
+    - NODE_OPTIONS="--max_old_space_size=4096"
+addons:
+  apt:
+    sources:
+    - ubuntu-toolchain-r-test
+    packages:
+    - g++-4.8
+    - oracle-java9-set-default
+    - libsecret-1-dev
+    chrome: stable
+before_install:
+  - curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version 1.7.0
+  - export PATH=$HOME/.yarn/bin:$PATH ;
+install: yarn
+script: travis_retry yarn test ;
+jobs:
+  fast_finish: true
+  allow_failures:
+    - os: osx
+  include:
+  - stage: deploy
+    before_script: skip
+    script: skip
+    install: skip
+    before_deploy:
+      - printf "//registry.npmjs.org/:_authToken=${NPM_AUTH_TOKEN}\n" >> ~/.npmrc
+      - yarn
+    deploy:
+      provider: script
+      script: yarn run publish:next
+      on:
+        branch: master
+      skip_cleanup: true

package.json

@@ -5,7 +5,8 @@
     "lerna": "^3.5.0"
   },
   "scripts": {
-    "prepare": "lerna run prepare"
+    "prepare": "lerna run prepare",
+    "publish:next": "lerna publish --registry=https://registry.npmjs.org/ --exact --canary=next --npm-tag=next --force-publish --skip-git --yes"
   },
   "workspaces": [
     "extensions/*",