Fixed gitignore.
fixed #40, also corrects the redirect when the title of a document is changed
Merge pull request #39 from invliD/gitignore

Fixed gitignore
Refactored edit handler.
reenabled possibility to add and create groups
Merge pull request #47 from Bartzi/user_management

Reenable Groups and Permissions
Merge pull request #45 from l--f/fix#40

fixed #40, also corrects the redirect for changing title of a document