Decode request body from bytes to unicode.

Pass unicode to json.loads. (#428)

In python2 there was auto-coercion happening here but in python3 we need
to pass in unicode and requests body is bytes.

Add a feature to Mixologist

Mixologist can now take class objects and string class paths as input.

xblock-1.1.1

Adds ability to auto-deploy to PyPI from Travis on creation of new tags.

xblock-1.1.0

Adds the CompletionXBlockMixin and testing improvements.

xblock-1.0.1

Merge pull request #365 from edx/efischer/play_nice_with_py27

remove unicode literals

Support Python 3.

This release now verifies that tests pass under both Python 2 and Python 3.

Add ScorableXBlockMixin

Created a new mixin to encapsulate scorable block functionality.

This mixin provides:

• A consistent interface for retrieving and setting scores on the block, and calculating new scores.
• A generic implementation of rescore functionality using that interface

Consume Fragment class from the new web-fragments library

Merge pull request #359 from edx/andya/use-web-fragments

Separate Fragment class out into new web-fragments package

Add new XMLString field type

Merge pull request #357 from edx/cdyer/xml-string-field

Add XMLString field type which validates input.

xblock-0.4.7: Merge pull request #339 from edx/mattdrayer/increment-release-version

Includes latest changes to XBlock core project