merge of branch global-nconf
Merge pull request #126 from leider/master

nconf jetzt global
Extending the member admin table
Merge pull request #127 from leider/master

Done: https://github.com/softwerkskammer/NeuePlattform/issues/93
small refactoring of "Group" constructor
Done - Groups with Emailprefix

https://github.com/softwerkskammer/NeuePlattform/issues/94
The prefix should be write-once
Merge pull request #128 from leider/master

Done https://github.com/softwerkskammer/NeuePlattform/issues/94
Prototyping server-side validation
what a bug

gm-mixins didn't link absolutely
merge
Merge remote-tracking branch 'upstream/master'
Sympa is now ignored in tests (the stub is being used).
Now the groups "alle" and "commercial" are automatically selected for new members.
Merge remote-tracking branch 'upstream/master'
Merge pull request #132 from NicoleRauch/master

Die Gruppen "alle" und "commercial" werden beim Anmelden automatisch selektiert.
server side validation, 2nd edition
Merge remote-tracking branch 'upstream/master'
now also admin pages can have validations
Fix Issue #133
Merge remote-tracking branch 'upstream/master'