Kali: Auto VM guest detection/install + Iceweasel Add-ons + Tunneling

+ Fully automated Firefox/Iceweasel addons (woohoo!)
+ Auto detects if being ran in VMware or VirtualBox - and tries to install tools/addons (VirtualBox hasn't been fully tested)
+ Added tunneling tools
+ Improved bash configurations
+ Added more aliases
+ Made it easier to alter keyboard/time zone on a per user basis
+ Updated FoxProxy
+ Updated conky
+ Fixed a few bugs
+ Added more comments