Added description(s) for feature(s).
Removed unnecessary branches entry.
Fixed spelling error in util.py
Added search-form in the page header. Fixes #211.
Attachment support now expects env var TRAC_ENV
Switched from camelcase to using underscores.
Fixed all paths to use os.path.join()
A basic framework for database upgrades. Closes #193.
Updated copyright message for Attachment.py.
Added a milestone icon by Francois.