Keyring

=====

* Renamed ``keyring.util.platform`` to ``keyring.util.platform_``. As reported
in Issue 112 and `mercurial_keyring 31
<https://bitbucket.org/Mekk/mercurial_keyring/issue/31>`_ and in `Mercurial
itself <http://bz.selenic.com/show_bug.cgi?id=4029>`_, Mercurial's Demand
Import does not honor ``absolute_import`` directives, so it's not possible
to have a module with the same name as another top-level module. A patch is
in place to fix this issue upstream, but to support older Mercurial
versions, this patch will remain for some time.

=====

* Ensure that modules are actually imported even in Mercurial's Demand Import
environment.

===

``keyrings`` namespace should now use the pkgutil native technique
rather than relying on pkg_resources.

===

24: File based backends now reject non-string types for passwords.

===

21: Raise ValueError on blank username in plaintext
keyring, unsupported in the storage format.

===

17: Drop dependency on keyring.py27compat and use six
instead.

16: Minor tweaks to file-based backends.