Fix #1754
Add Windows 8.1 to the hardware reports
Add some strings for Windows 8 and 8.1

And server '12 and server '12 R2
Fix some compiler warnings in Irrlicht
Fix some coding conventions

Thanks to hiker for the info
Actually fix #1754

Thanks to Hiker for the help!
Merge branch 'master' of https://github.com/thamlett/stk-code into thamlett-master
Fixed coding style.
Merge branch 'thamlett-master'