Set GEM_PATH when using built-in gemcache

This allows rubygems to work with gems loaded from lib/gemcache.
Merge remote-tracking branch 'bturner-r7/set_gem_path'
w3_total_cache
fix
spaces
fix email
Added a request to force db caching
Use target_uri for the wordpress url
fix url path
fix msftidy
implemented juans feedback
Merge branch 'w3totalcache' of https://github.com/FireFart/metasploit-framework into FireFart-w3totalcache
final cleanup