Created heading for Requirements.
Changed display of textad link to call a custom tag to wrap link
around keyword instead of all the text.
Added custom tag to look up url for link and wrap it around keyword
that is wrapped with '[[' & ']]'.
Also adjusted random ad tag to pass the request context back to the
template to be used with other tags.
Added help text to show how to create a keyword to be used in
text ads.
Merge branch 'develop'
Bumped version to 0.3.2