Python API documentation generation tool Code

- Moved PYTHONPATH statement up

- Updated description of \EpydocIndex command

- Changes to make graph colors user-customizable.

- Use the xkeyval package to add two new keyword options to the epydoc
sty file (title and creator), which are used to set the hyperref
options pdftitle and pdfcreator.

- Use conditional test to decide whether the dvips or pdftex option
should be pased to the hyperref package. The generated latex output
no longer hard-codes information about the driver (so the same
latex output can be used by both latex and pdflatex).

- The preamble in the generated api.tex now *just* uses the selected
epydoc sty package. (the \uepackage statements for the hyperref
and graphicx packages were changed to \RequirePackage statements
in epydoc-base.sty.)

- Fixed bug where nested classes were not being documented.

- Fixed several bugs with index generation

- Fixed \ProvidesClass statements in epydoc-*.sty files

- Allow dotgraph colors to be customized via config files.

- Fixed bug in selecting pdfdriver when pdfdriver=auto.

- When wrapping function signatures, align the wrapped args with the
function's open paren.

- Added \raggedright to function signatures in shaded style

- Pass context to ParsedDocstring.to_latex()

- Fixed bug caused my change in return value of parse_arguments