Ignore Emacs backup files
Merge pull request #19 from triplem/sympa

Sympa - First working version
Merged master
The sympa command 'lists' only returns a string, not an array.
Added methods for the sympa commands 'which', 'add' and 'del'
Added a new sub-url '/subscribed' to the groups app.
Ran the tests too late...
Replaced the sympa action 'lists' by 'complexLists' which returns an array of lists with richer information.
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