Merge pull request #77 from NoblesseOblige/master

bwRavencl's Multi controller (Clean merge)
Fixed handling if an assigned controller gets disconnected
Menu, Back and Volume buttons are ignored for controller selection now
Added mroe meaningful controller strings / string names
Minor cleanup
Updated build instructions
Fixed format
Fixed the default value for add_controllers in Android.cpp
added irc info
Removed redundant import of InputDevice
Added gui switch to enable / disable touch vibration (haptic feedback)
Added version name string to about message
Merge pull request #81 from bwRavencl/multi-controllers-fixes

Multi Controller Fixes
Merge pull request #78 from NoblesseOblige/master

Convert strings to string resources to support translations
Merge pull request #89 from hooby3dfx/master

Updated build instructions in readme
Moved about box strings to string resource file
Merge pull request #92 from bwRavencl/about-version

Added version to about message