non-error-msg for comments
GET menu for new groups/users
Use links instead of buttons (#41)
A bit unfamiliar, let's give it some time. The user/groups-menu are clearer now
thumbnail fix when w/o extension
serendipity_getThumbNailPath added an unnecessary dot, breaking thumbnail when using the fullsize image
link fullsize image preview directly
extension fix for resizing
button for comment-toggle
git blue datetime cross
it destroys the date input in chrome
store multiple categories (#51)
so they don't get lost when collapsing the selector
use magnific everywhere (#52)
personal settings autocomplete fix
link instead of button in directory-menu
Fix "combined" selector (used for toggle headlines).

References #41
Style toggle headlines as blocks for better visual orientation.
Drop precautionary admin_link class.

References #41
Adapt backend markup for "Build cached entries".

References #54
Adapt backend sidebar entry for serendipity_event_entryproperties.

References #54
Refactor backend markup for serendipity_event_entryproperties.

Note: This still needs work with styles/layout and inline JS.

References #54