Merge pull request #1 from mr170/master

fix some typos
fixed: fix some typos

The pull request forgot the code than calls auth.
catch null auth header
Merge branch 'master' of https://github.com/gjersvik/ompa
Merge branch 'master' of https://github.com/mr170/ompa

Conflicts:
	bin/src/server_auth.dart
add brackets to if