The converted text is stored in separate .rst files in the docs directory.
Refs #9562

Touches nearly everything unfortunately but is necessary.

Refs #3984 Took the wiki description from every algorithm's wiki page and placed it in a comment in the CPP file (instead of the header file).

Refs #3724: Pulled wiki description text from the wiki site and added in algorithms' header file with special tags. The auto_wiki.py script can retrieve the text to generate the wiki page fully.

Refs #3724: wiki making in python script, wiki page validation, and a few descriptions that were missing from my algorithms.

Refs #2840: PeaksWorkspace rewritten to use a vector of Peak objects instead. PeakIntegration should be checked (no test). Added an algorithm that creates a simple empty PeaksWorkspace, for testing and perhaps future use by Andrei.