bump version to alpha

info.xml

@@ -5,8 +5,8 @@
   <description>A CMS independent extension to allow organisations to manage a group of resources (i.e. rooms) offering these to constituents for a fee.</description>
   <license>the GNU Affero General Public License 3 (GNU AGPL 3) and the CiviCRM Licensing Exception.</license>
   <maintainer>
-    <author>Erawat Chamanont, Jamie Novick</author>
-    <email>erawat@compucorp.co.uk, jamie@compucorpc.o.uk</email>
+    <author>Erawat Chamanont, Jamie Novick, Guanhuan Chen</author>
+    <email>jamie@compucorpc.o.uk, guanhuan@compucorp.co.uk</email>
   </maintainer>
   <urls>
     <url desc="Main Extension Page">http://civicrm.org/extensions/civibooking</url>
@@ -15,9 +15,9 @@
     <url desc="Licensing">http://civicrm.org/licensing</url>
   </urls>
   <documentation></documentation>
-  <releaseDate>2015-11-05</releaseDate>
-  <version>1.5</version>
-  <develStage>stable</develStage>
+  <releaseDate>2016-06-05</releaseDate>
+  <version>1.5alpha</version>
+  <develStage>alpha</develStage>
   <compatibility>
     <ver>4.5</ver>
     <ver>4.6</ver>