Python API documentation generation tool Code

formatting changes to the webpage

- Various formatting & css changes for the manual
- Added navbar to the bottom of generated manual html pages

- VariableDoc's containing routines with overrides != None should
return true for is_detailed()

- Added missing import statements (SF bug 1669525)

- Added :term: reST iterpreted text role to create indexed terms as X{...}
epytext markup.

- Fixed --no-frames option: frames and relative links are really not generated.
- Don't generate links for toggle_private() when --no-private option is used.

- Fixed a couple of bugs in config file parsing
- Fixed config example for fail-on option

- Some manual fixes
- Manual on the homepage.

- The manual can be created both as a single document and many pages.
The single chapters may be linked from the homepage.

- Added reST and javadoc markups to documentation
- Confug file example updated