added TODO.txt listing some problems that need solving.
fixed signaling bug that made space_gettuple hang.
added checks for CUDA and CELL to configure.in
make hard copies instead of symbolic links.
remove unused local directory.
forgot to add ChangeLog.
added flags to the engine to specify behaviour (instead of defines).
added SIMD_FLAGS.
forgot one call.
removed runner queues and engine_getpairs -- tuples are much better.