Fixed typo in parameter
Merge branch 'new-linking-system' into unstable

Conflicts:
	parameters/centerline-gpu/us-accuracy
created AMD kernels for less memory GVF
fixed some syntax errors in new GVF kernels
added runGVF and runFastGVF functions
added runLowMemoryGVF function
fixed bug with boolean parameters not being set correctly from command line
removed one cout
increased min-tree-length for airway
less memory GVF for AMD working
improved a cout statement
fixed bug with parsing boolean command line arguments
added low memory GVF kernels for NVIDIA devices
implmented low memory GVF for NVIDIA devices as well
added ifdefs for SIPL visualization on the new centerline method
Added presets for new centerline method
removed c++11 range loops
created vtk centerline export function
updated OCL utilities
working 16 bit buffers for slow GVF