CS-5473: Adds sorting by author and status and required changes in admin.js for accounting widget
CS-5473: Adds sorting for author and status to ArticleList datatables
CS-5484: Adds configuration option for scheduler service
CS-5484: Adds configuration option for jobby environment variable
CS-5484: Changes configuration name to more univeral 'scheduler'
Merge pull request #845 from m038/CS-5484_master

CS 5484: Scheduler environment is now configurable from parameters - master
Merge pull request #841 from m038/CS-5473_master

CS-5473: Adds sorting by author and more - master
update symfony to 2.6, remove some not used dependencies
Merge branch 'master' of https://github.com/sourcefabric/Newscoop
Workaround lack of support for @ character in locales
Add correct codes for Serbia
Merge pull request #849 from danielhjames/master

Workaround lack of support for @ character in locales
Merge branch 'master' of https://github.com/sourcefabric/Newscoop
configured travis notifications on hipchat