Fixed minor issues with workflow job generation and chip-gen arg parsing.

scripts/chip-gen

 #!/usr/bin/env python
 from chipathlon.workflow import Workflow
 import argparse
-import yaml
-import pprint
 
 parser = argparse.ArgumentParser(description="Generates a workflow from a run, param & config file.")
 parser.add_argument("-H", "--host", dest="host", required=True, help="Database host.")
@@ -16,7 +14,7 @@ parser.add_argument("--properties", dest="properties", required=True, help="Path
 parser.add_argument("--execute-site", dest="execute_site", required=True, default="local", help="Target execute site.  Sites should be defined in configuration.")
 parser.add_argument("--output-site", dest="output_site", required=True, default="local", help="Target output site.  Site should be defined in configuration.")
 
-parser.add_argument("--save-db", dest="save_db", default=True, type=bool, help="Whether or not to save results to the database.  Default: True")
+parser.add_argument("--no-save-db", dest="save_db", default=True, action="store_false", help="Whether or not to save results to the database.  Default: True")
 parser.add_argument("--rewrite", dest="rewrite", default=False, action="store_true", help="If specified, don't load from the database, rewrite files.")
 parser.add_argument("--debug", dest="debug", default=False, action="store_true", help="Print out more information while generating.")
 args = parser.parse_args()