Rolling back last migration

migrate throws:
==========
KeyError: u"Migration common.0001_squashed_0003_report_last_sent dependencies references nonexistent parent node"
Rebuild initial migrations
Delete migration history
Merge branch 'dbmigrate'
Make migrations

Migrations for common and timeslots apps to reflect effected changes for sendreports workflow
Bug fixes

Fixed bug in sendreports that threw TypeError: can't compare offset-naive and offset-aware times when tz=<UTC>

Moved to hollandinchina.org e-mail address for outbound e-mail