Merge personal Google Summer of Code 2014 wxQt for historic purposes

to close 2014 wxQT GSOC work cleanly:

* Move the work done in my personal account (just in case, as there were changes in trunk)
* Preserve correct commit history (authors and dates), at least in this branch
* Link my repository (as there are important issues, wiki pages and pull requests)

For more info see:

https://groups.google.com/d/msg/wx-dev/irvzc2jiUmg/cdIHqaugTiMJ