<commit_before>Enable CHANGELOG
================

Enable 4.5.0
============

Enhancements
------------

 * Added a base class for drag and drop tools, example and test support.
 * PR #160: Basic testing for kiva backends.
 * PR #168: Simple push-button and checkbox tool.
 * PR #167: Added tools that support Apptools Undo/Redo.
<commit_msg>Update changelog to contain all changes since 4.4.0.<commit_after>Enable CHANGELOG
================

Enable 4.5.0
============

Enhancements
------------

 * PR #138: Optional constraints-based layout.
 * PR #140: Add a base class for drag and drop tools, example and test support.
 * PR #150: Add a very basic Image component
 * PR #160: Basic testing for kiva backends.
 * PR #168: Simple push-button and checkbox tool.
 * PR #167: Add tools that support Apptools Undo/Redo.

Fixes
-----

 * PR#139 Significant code clean-up, modernization, test improvement and
   documentation for Kiva.
 * Multiple fixes for breaks to Travis-CI builds.
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