Fixing some keys stuff
Fix for nudge (I hope)
Merge pull request #113 from martinhanzik/master

Block tooltip says Light and Sky instead of L/S.
Some changes
Fixed E/G roll/rotate brush
Windows/Linux now defaults to fixed install.
Mac crash fix
Mac directory crash fix
Modifiers
Added some keys
More fixes for modifiers
Merge pull request #114 from Khroki/Modifiers

Modifiers
Reverted the line tool key
Disabled nether Heightmap 0
Moa.r
WASD OLD
FIXED WASD OLD

Capitals 100% more necesarry
Small change for keys
Not letting user pick invalid keys
Started documentation