wrote a vector test because I don't even
inrceased k, changed ints to floats
Print table should only be run if absolutely necessary (note: 1.5 gig files are CRAAZY)
Changed from 3d to 2d ((radius^3 -> radius^2 and radius^2 -> radius)) to fix some issues with cells contsastly flying straight. Also, changed mass^3 to mass^2. Thus had to decrease density to make size larger.
Resistance is now a property of the environment, rather than a property of the cells
Merge branch '0.5.dalen' of github.com:NCFDev/cellular into 0.5.dalen

Conflicts:
	cells.py
Made sight range an intrinsic property of the cell
Moved updating the cell's sight range into weight_management()
roseurc
Merge branch '0.5.dalen' into 0.5
Merge branch '0.5' into 0.5.richard

Conflicts:
	cells.py
	main.py