Python API documentation generation tool Code

- Added Token.TEXT to represent an inline chunk of text.
- Some tests updated. Not all tests pass yet anyway.
- Removed double <br/>'s from HTML output.

- This branch aims to solve the html problem raised in SF bug #1671711.

Currently epytext html output creates excessive <p> tags (e.g. in lists and
fields). There is an hack that postprocesses the first html rendering
removing some of those tags, but it probably exagerates and some paragraph
is rendered without <p> at all.

This leads to the need to add many <br/>'s in the HTML output, different
spacing w.r.t. other markups, surprising behaviour of the page when the
CSS is to be customized.

The proposed solution is to add a new type of epytext node: 'text'
representing inline text inside other elements, such list items.

- Fixed docstring (it appeared a definition list).

- Fixed margin for nested lists in fields.

- Some HTML cleanup.

- Fixed svn properties

Fixed sf bug 1669572 -- <foo at 0x123> values were not getting
penalized if they were too long.

- Fixed broken link.

- Updated for 3.0beta release

- Minor css change