* Update vaadin widget set

* Fix issue in tracker module

Author: Hai Nguyen

.gitignore

@@ -0,0 +1,4 @@
+mycollab-app-community/logs/mycollab.out
+mycollab-app-community/logs/mycollab.out.1
+mycollab-app-community/mail-repo/.lock
+mycollab-app-community/mail-repo/cluster_node.id

mycollab-app-community/src/main/txt/Release_Notes_4.0.0.txt

@@ -7,14 +7,14 @@
 
     MyCollab is licensed under the Affero GPL 3 license.
 
-    You can checkout our latest development source codes at https://github.com/haiphucnguyen/mycollab/commits/master
+    You can checkout our latest development source codes at https://github.com/esofthead/mycollab
 
     For further information, please visit:
       * http://www.mycollab.com/
       * http://wiki.mycollab.com/
 
     Contact the MyCollab team at:
-      * You contact us via email support@mycollab.com or our web form http://www.mycollab.com/contact-us
+      * You contact us via email support@mycollab.com or our web form https://www.mycollab.com/support/
 
 
     System requirements
@@ -31,7 +31,7 @@
     Installation
     ============
 
-    1. Download MyCollab - http://www.mycollab.com/pricing?tab=download
+    1. Download MyCollab - http://www.mycollab.com/pricing/download/
     2. Follow installation guideline at here http://wiki.mycollab.com/Installation_Guideline
 
     If you need more MyCollab advanced configuration, please visit link http://wiki.mycollab.com/Configuration
@@ -86,4 +86,4 @@
 
     Well known issues
     =================
-    None
+    Calendar view display badly on IE9 at the first time