Tagging release 0.5.1
Forgot to add ChangeLog.
Cleaned up files and added various odds and ends for a 0.5.1 release.
Bumping version number.
Removed absolute/incorrect url in the CSS. Fixed #76.
Updated release notes for imminent 0.5.1 release.
Make sure the toolbar-links work even when displaying error messages.
No more ugly tabs.
Fixed two bugs found by jburley.
Added release notes for 0.5 release.