* Added SumOfOnesF2ExampleProof as a test proof.
* Added a macro for first-order transitivity to macroRules.scala.
* Added Scaladoc to the macro rules and definitiional rules.

git-svn-id: http://gapt.googlecode.com/svn/trunk/source@1547 85d21ef8-add0-11de-ae77-5bfb9c5a3f34