Fixing LWIN and RWIN keycode definitions

adding in the appropriate scancodes windows keys on mac os x
VK_RMENU defines right windows key

changing 71 to VK_RMENU
Hard Coded and Keymap codes fixed for OS X

fixed right menu and both left and right windows keycodes
Merge pull request #1003 from jmealins/master

Fixed keyboard_x11.c and keymaps to have proper keycodes for windows keys on OS X