#314 WIP Importing a Scenario:  I'm doing all development steps simultaneously for some reason.
#314 WIP Importing a Scenario
#314 All the file handling is done.  I just need to call xml2sqlite directly instead of by command line.
Closes #319.  Syntax fix for get_or_create()
#314 Major: Refactored xml2sqlite call structure to act like an integrated module.
Merge remote-tracking branch 'origin/master' into master3
#314 Fixed XML encoding issues by using ET.fromString()