fix broken test
Merge pull request #2173 from dimagi/fix_fixture_test

fix broken test
update casexml
put offline cloudcare behind a toggle
don't 500 when new domain to copy app is blank
Merge pull request #2177 from dimagi/offline-cloudcare-toggle

put offline cloudcare behind a toggle
Merge pull request #2178 from dimagi/copy_app_blank_domain

don't 500 when new domain to copy app is blank
basic fixture model migration
modifies a fixture couch-view for attribute support
renaming fields method
modifies report-filters-using-fixtures to attribute-fixture-filters
modifies custom-apps-filters to be compatible with fixtures-attributes
modifies Fixtures upload for attributes
casting ints from excel to strings to store in couchdocs
better exception handling
fixture api better upload exception
fixtures style changes from review
adds fixture-download with attributes
download fixtures with excel
minor fixes in fixture-download