added db_info tool; remind users of table and columns names/types.
fix whitespace issue with windower
parallel loadinggit diff | grep diffgit diff | grep diff
Pythonified the parallel loader.

gemini load works as before.
gemini load --cores > 1 runs on a multicore machine
gemini load --cores > 1 and --lsf-queue queue_name runs on platform LSF.