Added SBT files
Standard Hello World check
Updated .gitignore
Updated .gitignore some more

Ensuring that target artefact things are ignored.
Adding scalaz to the libraries list.
Started a little utilities class
Started work on Toby Walsh's PeerMark
Moved Math around, added some stuff
Had to move util.Math back

I apparently have no idea how Scala scoping works.
Functional control structures (doWhile)

All of these are tail-recursive so they don't smash the stack.
Finished Walsh's PeerMark
Added the ScalaTest library
Added tests for Math utils
Added identity matrix
Added ruffled DoWhile