Implement Wrecker, clean WO/Ship constructors
Name the wreckages
make is possible to pass properties around
add helper for unnamed properties
make it possible to set properties globally
Merge branch 'master' of github.com:voxelinc/voxellancer into crucial_kills

Conflicts:
	src/worldobject/ship.cpp
	src/worldobject/worldobject.cpp
	src/worldobject/worldobject.h
remove duplicated destruction boolean
Merge branch 'master' of github.com:voxelinc/voxellancer into crucial_kills
remove condition from setcrucialvoxel
Merge pull request #495 from voxelinc/fix_sound_activation

fix soundmanager
rename unnamed_property to unnamedProperty
fix engine configuration
Merge branch 'master' of github.com:voxelinc/voxellancer into crucial_kills

Conflicts:
	src/sound/soundmanager.cpp
add "- wreck" to wreck name
Update wrecker.cpp
Merge branch 'master' of github.com:voxelinc/voxellancer into make_is_possible_to_pass_properties_around

Conflicts:
	data/equipment/engines/enginemk1.ini
Merge pull request #485 from voxelinc/crucial_kills

Wrecker
Merge pull request #487 from voxelinc/make_is_possible_to_pass_properties_around

make it possible to pass properties around
Merge branch 'master' of github.com:voxelinc/voxellancer into dont_check_collision_against_bullet

Conflicts:
	src/worldobject/worldobject.cpp
	src/worldobject/worldobject.h