When redistributing, the debugging checks need to verify that particles are sorted in the right node, not in the right cell.

Conflicts:
	src/Makefile.am
	src/gravity/Default/gravity_part.h

No sorted pair over mpi

Fix to #256. Do not use sorted pairs when the pair task is crossing over two MPI nodes. 



See merge request !312

Conflicts:
	src/runner_doiact.h

Matthieu Schaller authored Feb 02, 2017 and Peter W. Draper committed Feb 03, 2017

Added the missing SSE function in vector.h. Compiles but accuracy is not identical to AVX when running test27.

Update the task plot scripts to include new tasks and subtasks.

Also fixes an issue where gaps between successive tasks of the same type
were not seen as these were joined (for plotting efficiency I guess).
A gap is now seen.

Also change the colour handling so that the task/subtask types are
easier to differentiate.

Fixes issue #260.

See merge request !311

Fixes an issue where gaps between successive tasks of the same type
were not seen as these were joined (for plotting efficiency I guess).
A gap is now seen.

Also change the colour handling so that the task/subtask types are
easier to differentiate.