QtPy is a compatibility layer which allows to use the code written for
PyQt5 with any python Qt binding: PyQt4, PyQt5, pyside or pyside2.
Main differences in PyQt5:
- all widget classes are now in QtWidgets package, not QtGui;
- QString obsoleted by unicode (sip API 2);
- changed the way of signals connection.
Closes: #1191
* Added: Sphinx configuration including readthedocs config
* Added: Sphinx fabric task to auto-document the project
* Fixed: Some issues in the code causing autodoc to fail when parsing
* Added: Manual docs - structure, proof of concepts and RsT examples
* Fixed: RsT formatting in docstrings
* Fixed: Some adjacent minor style and lint issues
