With the Python 2.7 deadline fast approaching, modernize the codebase making use of the modernize module to switch to using six, as well as other upcoming features, such as absolute imports . Stop using 2to3 for Travis, yay!
* add import source * add import header * create/get source import for repo, SourceImport class * Corrected use_lfs, not considered completed with creation * vcs creds optional * SourceImport test, removed unneeded attributes * create/get source import tests for repo * Encoding and copyright comment * styling fixes * Update SourceImport.py * Update SourceImport.py * Update SourceImport.py
Steve Kowalik