Move personal and course collections into tufts_models
added method to get positions of members
made flattened_member_ids_with_collections ignore deleted members
added explicit local namespace
When updating a datastream that doesn't have the local prefix, add it. Fixes curationexperts/tufts-image-library#52
Remove external datastreams from new fixtures
Ensure the dcmi namespace (ac prefix) is added to documents that don't already have it. Ref #295
Merge pull request #9 from curationexperts/explicit-namespaces

Explicit namespaces
removed unneeded variable (minor change)
add the dc prefix to TuftsDcaMeta datastreams if it doesn't exist. Fixes curationexperts/mira#306
Rectify dcadec typo. Fixes curationexperts/mira#309
added 'local' prefix to template_name
removed 'dcadec' cleanup code that is no longer necessary
made TuftsTemplate show validation errors on models it's about to create; fixes curationexperts/mira#305
update to new hash syntax
fixed a test to make sure there's prefixes on all attributes; fixes #10
Set devise version required for the test app