Added chown capabilities to migration

Merge pull request #2 from DarkEnergySurvey/addingMigrationScript

Added chown capabilities to migration

Added file management tools

Added scripts to migrate data and compact log files.

Workaround for update bug

Added a workaround where astropy.io.fits replaces trailing spaces with NULLS in certain tables

Testing https

Testing switching to https for transfers

Initial Python3 version

Package has been converted to Python3