dag comparing.

Still there is errors in the result of the core algorithm.

Like variable in the script. Thread join in the data comparing.

Also change the script to compile everything and run test on my
computer.

Add a few more information to the ones simgrid use.
Put the same taskname in the explicit mpi.
Add source code to compare dag.
Add script to compile and run tests.

can't remember.

compare DAG.

# Conflicts:
#	CMakeLists.txt
#	Src/GroupTree/Core/FGroupTaskStarpuAlgorithm.hpp
#	Src/GroupTree/StarPUUtils/FStarPUTaskNameParams.hpp
#	Tests/GroupTree/testBlockedUniform.cpp

Cleanup and fix minor issues in tests and classes related to interpolation based FMM + Update gaussian correlation kernel to include derivatives.

starpu: for the scheduling contexts the number of arguments have changed recently. According to Terry Cojean, this is probably the right way to use the new argument in ScalFMM case