share/JobRunner.py: updates to SimpleJobRunner & GEJobRunner for log destinations & changing basic aparams.
share/JobRunner.py: updates to SimpleJobRunner & GEJobRunner for log destinations & changing basic aparams.

Updated SimpleJobRunner & GEJobRunner to allow destination directories for log files to be set
explicitly; also allow these be reset via new 'log_dir' method. New 'queue' method of GEJobRunner
also allows GE queue to be reset.

fw1121/genomics,fw1121/genomics,fw1121/genomics,fw1121/genomics,fw1121/genomics