Inlined website links and corrected some targets.

Links to the lang and lang/examples pages were wrong, and none of the linking
is so complicated that there was a strong benefit to them not being inlined.
Added much more content, clearer documentation.

Includes addition of Python 2.6 explanation, explanation of commandline usage,
and dropping authorship info
Added note to README about changing files.
Merge branch 'documentation/readme-fixup' into dev