updated moment-timezone
update dev-dependencies
updated express related dependencies
embarrassing - forgot return on re-login :)
update some more dependencies
change gitignore to ignore few more files
changed references to "NeuePlattform-Implementierung"; now using "Agora"
Merge commit 'a050f91c3b57f5cda51d83e0cad63fdbf7ef8b89'
removed unused code
Merge pull request #749 from leider/master

dependencies bump
more elegant error handling when subscribing / unsubscribing from groups
Merge commit 'ec61e34802043b0153d289a58865c67cfad7bb36' into sympa-changes

Conflicts:
	package.json