merged found bugs and fixed for stable release:

- added force https option into ini files for easier https usage (no need to
set server headers with this options)
- small css updates
- fixed #96 redirect loop on files view on repositories without changesets
- fixed #97 unicode string passed into server header in special cases (mod_wsgi)
and server crashed with errors
- fixed large tooltips problems on main page
- fixed #92 whoosh indexer is more error proof