Ticket #98: Create new extended subjects metadata field.
Ticket #98: Show extended subject field in cataloguing fieldset, for French locale.
Ticket #98: Add final Extended Subjects field terms.
Ticket #98: Add extended subjects to attachment metadata.
Ticket #99: Add Institution model for institutional providers.
Ticket #99: Add timestamps to institutions table.
Ticket #99: Add English locale text for institutional providers; admin views for v2 theme.
Ticket #99: Set institution from admin users controller.
Ticket #100: Add filtering by institution to XML/CSV export.
Ticket #100: Add per-institutional provider OAI-PMH sets.
Ticket #100: Fix regexp in institution code validation.
Ticket #100: Fix institution code regexp properly.
Ticket #100: Add provider and data_provider to exports.
Ticket #100: UGC-only OAI-PMH set.
Ticket #100: Restrict XML/CSV exports to UGC or institutional provider.
Ticket #100: Default export set to "all" (UGC & institutional).
Ignore deployed bundles.
Add example Devise initializer.
Ticket #12: Regard approved contributions as published when approval not required.