Documentation enhancements

[spooning]

Originally submitted to Google Code by @pekkaklarck on 8 Oct 2008

1. Update to use new libdoc.py styles (internal linkin etc.)

2. Possible browser name formats in 'Open Browser' should be explained in a
   list or table so that it is easier to find that information.

3. 'Open Browser' should mention that also 'IE' works as browser name. (At
   least it should!)

4. Both comments in 'Click Link' example should be in third column.

[spooning]

Originally submitted to Google Code by @pekkaklarck on 13 Oct 2008

5. Possible add more examples and cross-linking between keywords.

[spooning]

Originally submitted to Google Code by @yanne on 15 Oct 2008

Some quite big improvements are available in r65, r66.
Proofreading and suggestions are still welcome.