Refactored templates
Prep choices keys for DisplayField
Justed added a comment related to pull 93
Merge branch 'master' of https://github.com/burke-software/django-report-builder
Update README.md
Factored out functions to django report utils
Checkpoint where things works with
django-report-utils 7eeba5b1ca14a425016d649c74659b073d9659a4
Xlsx report converted to class based view
Fixed url reverse to download report
Fixed broken url
Moved sort helper to report utils
Removed preview from download xls
Added experiment for async reports.
Minimalist async downloads is working but need to make it better
Added async report download to admin changelist
require report utils > 0.2
Merge branch 'master' of https://github.com/burke-software/django-report-builder into develop

Also fixed a test

Conflicts:
	setup.py
Updated new
Test for python 3.4
Removed test for python 2.6
Eh travis ci doesn't support 3.4 yet