get saved configs working for variables that have defsults, and refactor a little the common utility code in common.py
Ran flake8 and cleaned up various format errors

Removed unused imports
Merge pull request #105 from huit/fix/config-loading-order

get saved configs working for variables that have defsults, and refactor...
Fixing nepho stack create

"providr" hadn't been defined in get_template()
Merge pull request #106 from huit/bugfix/stack_create_fails

Fixing nepho stack create
Merge remote-tracking branch 'upstream/master'