The page shown for an empty repository lists suggestions for Git clients,
mostly GUI ones, and links to their web pages.

The TortoiseGit client entry is removed since the URL is no longer valid.
The excellent client Fork is added to the closed source clients
section.

This commit also cleans up some other entries, fixing broken tags,
escaping ampersands and removing outdated or wrong information.

Tradução das últimas Strings até a data atual.

This is a massive commit which reorganizes the entire project structure
(although it is still monolithic), removes the Build classes, and
switches to Moxie, a smarter Ant build tookit based on the original
Gitblit Build classes.

The Ant build script will likely require additional fine-tuning, but
this is big step forward.