Gamepad controls
added: select previous target
removed gun/rocket state
fix linux compilation
Re-enable hooks and comment out problematic tostring stuff
Merge remote-tracking branch 'origin/hf_windows_tostring' into hooks_and_build

Conflicts:
	src/utils/tostring.cpp
correctly adjust center of splitted objects
merge with master, adjusted bullet speed and voxelHP a bit
merge with master
Merge branch 'master' into controls, add some assertions

Conflicts:
	src/worldobject/ship.cpp
Merge pull request #140 from voxelinc/controls

Gamepad controls
rename worldobjectsplit, improve readability
Merge branch 'master' of https://github.com/voxelinc/voxellancer into correctly_adjust_center
Merge pull request #164 from voxelinc/hooks_and_build

Re-enable hooks
forgot one texture
Merge pull request #168 from voxelinc/correctly_adjust_center

correctly adjust center of splitted objects
merge with master