check for crucial voxel
add icon to exe
add color code doc
fix howto
add world status on f9
fix working dir
fix
fix particle context rebuild
Add window icon to glfw window
Merge pull request #524 from voxelinc/icon

add icon to exe
rename doc files
Merge pull request #528 from voxelinc/fix_particleengine_context_rebuild

fix particleengine context rebuild
Merge branch 'master' of github.com:voxelinc/voxellancer into world_status

Conflicts:
	src/voxeleffect/voxelparticleengine.cpp
clean gitignore
Merge pull request #527 from voxelinc/world_status

add world status on f9
Merge branch 'master' of github.com:voxelinc/voxellancer into add_color_codes_and_install_docs
Merge branch 'master' of github.com:voxelinc/voxellancer into check_for_crucial_voxel
Rename RUB to URB (seems to be standard)
Update worldobjectbuilder.cpp
Merge pull request #532 from voxelinc/mv_rub_urb

Rename RUB to URB (seems to be standard)