Trying to remove Kernel2 and use GPU
Trying to make the recursion for predecessor searching parallel.
It seems working.
But it is making the time measurement wrong.
Merge branch 'master' of https://github.com/gagallo7/OpenCLStudy

Conflicts:
	ift-demo/demo/watershed2/dijkstra.cl
	ift-demo/demo/watershed2/watershed.c