re #8840

re #8840

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

Touches nearly everything unfortunately but is necessary.

Since it doesn't matter if the events are sorted for a unit
conversion, don't check for threadsafe.

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).

Removed the special data handling for VULCAN in Instrument.cpp, and made the changes to the codes using this functions.  Fixes #3889.

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.

Add a copy constructor to Instrument. Oh, and go on a const-correctness hunt that led this commit to touch slightly more than just the one class. Re #1944.

Refs #262: Created a more generic CompositeValidator and renamed the old CompositeValidator to CompositeWorkspaceValidator. Added some methods to IValidator for future enabled/visible choice.

Eradicate IInstrument. Instrument's the one to talk to now (it was the only descendent class anyway). Re #2041.

documentation error spotted by Bill Marshall