Patch from Nicholas Riley for properly handling backslash paths on Windows.
Distutils in python <= 2.2 doesn't have the log function.
Make sure the executable bit is set on trac.cgi when installing.
Fixed {{{ source: }}} links to files.
Updated logos.
Updated logotypes.
If a component is renamed, update the tickets as well.
This closes #68
Prettier and more informative error messages.
Fixed a few wiki-table corner cases.
Create cgi-dir if necessary. Check python version, bark at user if < 2.1.
