minor bugfixes + enhancements

• add release version to base template
• improve general search
• improve 500 and 404 content
• handle rest framework NotFound errors as 404s

fix draft releases

critical bugfix, draft releases were not generating a unique share_uuid, 95952b4

add stopgap review

numerous bugfixes

• forum activity is now properly retrieved from the cache and won't 500 the front page when the forum is unavailable
• library fs api now initializes filesystem properly if it didn't exist for whatever reason
• added autopostgresql backup
• additional redirect for existing cited URLs

initial comses.net release

Initial comses.net release with mostly complete data migration from openabm.org

features due for next release:

• model review
• following topics / other users / models
• sharing (social / etc)
• codemeta generation
• DOIs