make is possible to pass properties around
add helper for unnamed properties
make it possible to set properties globally
rename unnamed_property to unnamedProperty
fix engine configuration
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 #487 from voxelinc/make_is_possible_to_pass_properties_around

make it possible to pass properties around