mapping modal URL in RTF fixed
Bugfix: Autocomplete for people, groups and objectives
Merge pull request #897 from reciprocity/feature/autocomplete-bugfix

Bugfix: Autocomplete for people, groups and objectives
Merge branch 'release/0.9a20' into develop
Merge pull request #895 from reciprocity/feature/mapping-modal-url-fix

mapping modal URL in RTF fixed
Fix condition for CanJS 2.0

* Also, `Person#email` should never be null or empty anyway.
Use case-insensitive regex for importing emails

* Now matches `Person.validate_email`
Fix `autogenerate` for extension modules

* Basically, use the `ScriptDirectory` instance (which contains the
  overrides for the locations of `env.py` and the `versions` directory)
  from the extensions environment rather than building a new one.
Remove unnecessary `handle_context` from Audit modals

* This was deprecated long ago, but didn't break anything until CanJS
  2.0, which is incompatible with the `handle_context` helper.  Instead
  of fixing it, just rip it out.
Merge pull request #899 from reciprocity/feature/small-change-fixes

Two small fixes
Merge pull request #900 from reciprocity/feature/minor-migrate-fixes

Fix `autogenerate` for extension modules
Merge pull request #901 from reciprocity/feature/remove-handle-context-helper

Remove unnecessary `handle_context` from Audit modals