almost finished var-limit
Visualizer:
	- added --bg-colour, point-size
	- added --draw_mode 4, 8, 16, 24, 28 for reprojection modes, check help
linePrimitive.h
    - moved line-width to draw from visualizer
planePrimitive.h
    - debug snippets, comments cleanup
segmentation.hpp
    - logging fitlocal start
processing/util.hpp
    - added warning for more then 1000 neighbouring points
run.sh
    - moved smallThresh argument to arg number 6 (after 3D)
    - set premerge to 1
Merge branch 'spatially_smooth' of https://github.com/amonszpart/globOpt into spatially_smooth

Conflicts:
	globOpt/scripts/run.sh
- added divide.py to enable fractional smallThresh steps