Update FogCreek icons with updated resources

I got these from FogCreek support, and are a bit crisper than the ones
previously used.
Fix capitalization in the docs for getEditUrl()
Update formatting of messages to use escape*() methods

* Update messages to use escapeText() and escapeLink() methods
* Remove an accidentally hard coded url
* Improve formatting on the view templates a bit until the stylesheets
are updated.
Merge pull request #7 from there4/fogcreek-logos

Update FogCreek logos and add better message escaping to the kiln,fogbugz plugins