Merge pull request #1010 from nlegoff/fix-homepage-feed

[Ready][3.8] Fix #1606 & #1712 Homepage does not display when deleting a feed
Merge branch '3.8'

Conflicts:
	lib/classes/Feed/Collection.php
	tests/classes/Feed/Feed_CollectionTest.php
Reset exception handler in tests setup
Add compatibility with elasticsearch 1
Remove unused functions
Remove unused files
Merge pull request #1023 from romainneutron/tests-exception-handler

[3.8] Reset exception handler in tests setup
Merge branch '3.8'

Conflicts:
	tests/classes/PhraseanetPHPUnitAbstract.php
Merge pull request #1022 from romainneutron/elastic-search-1.0

[3.9] Add compatibility with elasticsearch 1.0
Merge pull request #1025 from romainneutron/master-cleanup

[Ready][3.9] Remove unused functions
Bind task manager backbone app to websocket using autobahn
Add WS Connection object
Use new WS Connection object in task Manager App
Fix  init
Rename task option from configuration to status
Add application to admin
Remove unnecessary dependencies
WSConnection is not a singleton anymore
Add jquery.treeview, jquery.tooltip as dependency trought bower
Remove getters & setters