Added a new tool for selecting taxonomy terms

I added a new tool to aid in selecting taxonomy terms.
It appears as a link in a block positioned in the right side bar on edit pages.

Screen shot

A new option is available in the right sidebar: "Suggest keywords" containing one link: Highlight Terms.

Upon clicking the Highlight terms link a script searches the body of the node and does two things:

  1. Highlight taxonomy terms found in the body