Merge branch 'release/2.0a2'

* release/2.0a2:
  Bump version.
-   Use the typeahead bundled with deform instead of ``js.typeahead`` as the
    latter fails on Python 2.6.
Bump version.
Merge branch 'release/2.0a2-1' into production

* release/2.0a2-1:
  Bump version.
  -   Use the typeahead bundled with deform instead of ``js.typeahead`` as the     latter fails on Python 2.6.