Degrading Ehchache to 2.4.7

2.7.1 was causing problem.
Updates for database fetching

* Greatly improved reading performance by using fetch join left
instread of EAGER-fetching
* Fixed that it was not possible to print stories
* Fixed that new masteradmins were not added correctly
* Removed unnecessary Cachable-annotations
Merge pull request #89 from nilsi/master

Degrading Ehchache to 2.4.7
Fixed sorting of contributor and customer site
Merge pull request #90 from fredrikpersson/hibernate-cache2

Updates for database fetching
Removed the HTML children-tag on parent li elements
Merge pull request #91 from fredrikpersson/children-tag

Removed the HTML children-tag on parent li elements
Several fixes to Atmosphere, which includes fix for long-polling (fallback method when websockets isn't supported by the browser), as well as a fix for websocket to prevent it from disconnecting from the client after some minutes. The Atmosphere-files have also been updated to latest version.
Merge remote-tracking branch 'upstream/master' into atmosphere
Fixed correct indentation and removed some old references to ICEPush