Added a few commandline parameters and an abbreviation for VNS units.

-i to specify an input file (*.pcp)
-u to set unsuccessfulShakes
-s to set shakeStart
-t to set maxTime
-n to set the VNS units (not functional)
Merge branch 'master' of github.com:flowlo/pcp-vns

Merge because there are critical updates to the Makefiles
Merge branch 'shakeNode'

Added shake to changeNode Unit and fixed some bugs in the vns loop
Merge branch 'master' of github.com:flowlo/pcp-vns