Enhance existing apache config. Implement #50, #79, #93. Fix #10

Beware that adding `ProxyPass /uploads !` would be a security issue,
since uploads are publicly available without any authentification by default.

See: https://github.com/gitlabhq/gitlabhq/issues/348#issuecomment-21682402
Refine nginx config for ssl connections. Implements #67 and #92
Merge branch 'test' into new_structure