Merge branch 'cell_split' into star_particles

configure.ac

examples/Makefile.am

src/Makefile.am

src/align.h

src/cell.c

src/cell.h

src/debug.c

src/engine.c

src/hydro/Minimal/hydro.h

src/memswap.h

src/partition.c

src/proxy.c

src/queue.h

src/scheduler.c

src/space.c

src/space.h

src/threadpool.c

tests/testInteractions.c