merged @carlohamalainen's AAF into develop, fixed some formatting on the way
adds missing packages for AAF
aaf work in progress
aaf refactoring
added auth init
bug fix
bugfixes
enable email addresses as usernames
Merge pull request #1 from mytardis/develop

fixed bug with df.get_absolute_filepath
Fix for Issue #334
Fix for Issue #336
Fix for Issue #338
Fix for Issue #340
Merge pull request #335 from wettenhj/issue_334

Fix for Issue 334
Merge pull request #337 from wettenhj/issue_336

Fix for Issue 336
added migration for unique datafiles
Merge pull request #341 from wettenhj/issue_340

Fix for Issue 340
Fixed indentation.
Merge pull request #339 from wettenhj/issue_338

Fix for Issue 338
refactored api for better readability