New test for non-existing id
refactored persistence.getById to use array.filter instead of iteration
Added or corrected global directive
Changed DDD-description
Merge pull request #20 from leider/master

Habe Gregors Vorschlag umgesetzt
Made persistence tests order independent
Merge branch 'persistence-improvement'

Conflicts:
	test/persistence_test.js
Merge pull request #21 from ggramlich/master

Some improvements on the persistence
fixed typo
ignore persisted json files for grunt watch task
persistence.save method is now async
Merge pull request #22 from ggramlich/master

persistence.save method now has an async interface
Added error logging (to console for the time being).
The server lists are now displayed.
The lists a user subscribed to are now displayed.
First attempts to show the users of a list (does not work yet).
The main page now shows the interface of the groups module.
Renamed method, removed comment which is now contained in the method name.
Merge branch 'master' into sympa-interface