Merge pull request #640 from Tekashi/master

Minor UI tweaks
updated chai
More points that need to be done manually when renaming a group.
do not show the login menu if the user is logged in, but  hasn't completed the registration yet.
Merge pull request #641 from hojerst/master

do not show the login menu if the user is logged in, but  hasn't complet...
Fixing Agora-Backlog #136 case insensitive sorting
Merge pull request #642 from leider/master

Fixing Agora-Backlog #136 case insensitive sorting
Merge branch 'master' of https://github.com/softwerkskammer/Agora
new landing page
These tests now require stubbing.
Merge pull request #644 from leider/master

new landing page
added simple Vagrantfile with whole stack needed for running the application
Merge pull request #645 from hojerst/master

added simple Vagrantfile with whole development stack
small update of dev-dependencies
fixing #647 Groups links on index page broken
Merge pull request #646 from leider/master

fixing #647 and small update of dev-dependencies
changed style of stubbing
changed the implementation of sorting members by using _s
Merge commit '29ffca20418aa2d103e35cd324e4727c20f75959'
updated read me with vagrant instructions