Plone.app.vocabularies

------------------

Fixes:

- Restrict Catalog vocabulary to search current Navigation Root unless
path is specified.
[alecm]

------------------

Fixes:

- Make user vocabulary handle non-ASCII characters.
This fixes https://github.com/plone/plone.app.widgets/issues/120
[davisagli]

------------------

Fixes:

- Updated version to 2.2.0, as the previous release introduced an
incompatibility with Plone 4.3.
[maurits]

- Pull default_charset value from the configuration registry.
[esteele]

-------------------

- Pull available_editors values from the configuration registry.
[esteele]

-------------------

- Cleanup: PEP8, decorators for zca, et al. Also pimped the README.
[jensens]

-------------------

- Fixed SyndicatableFeedItems to allow unicode characters in objects titles.
[Gagaro]