online docs are missing class/function reference manual

[orbeckst]

The online docs do not contain the doc strings of the individual classes and functions. There should be a module/class/function reference section.

[dotsdl]

Thanks for catching this. scandir is now a depedency, and I forgot to add this to sphinx configuration as a mock module (easiest to do, since we already mock every other dependency) in order for autodoc to succeed to build on readthedocs. Fixed.