Checking in Chee Seng's branch that includes changes for the sbt enhancement, plus a few
minor tweaks by me. Cmd I used:

svn merge -r5246:HEAD https://scalatest.googlecode.com/svn/branches/cs-sbt-6


git-svn-id: http://scalatest.googlecode.com/svn/trunk@5251 fd1274fd-080f-5963-8033-43ee40fcd1de
Added a value method to the fake TagAnnotation generated for scaladoc.


git-svn-id: http://scalatest.googlecode.com/svn/trunk@5252 fd1274fd-080f-5963-8033-43ee40fcd1de
Added CPU, Network, and Disk to the list of annotations that get kludged into scaladoc.


git-svn-id: http://scalatest.googlecode.com/svn/trunk@5253 fd1274fd-080f-5963-8033-43ee40fcd1de
init ver. Adding tag objects to go with the new tag annotations.


git-svn-id: http://scalatest.googlecode.com/svn/trunk@5254 fd1274fd-080f-5963-8033-43ee40fcd1de