Converting CppAD documentaiton

[bradbell]

CppAD uses the OMhelp documentation system
https://bradbell.github.io/omhelp/doc/omhelp.htm

I am considering converting the CppAD documentation to Sphinx to make it easier for others developers to contribute. There are things I do not like about the doxygen, but perhaps it would be a better choice for C++ development ?

For an example of OMhelp documentation that has been converted to sphinx; see
https://bradbell.github.io/cppad_py/doc/
(cppad_y was used as a test of the conversion. I am not entirely happy with the result (and have plans to improve the conversion.)

[bradbell]

The CppAD documentation is now in rst with the following sphinx wrapper :
https://bradbell.github.io/xrst/html/user_guide.html