Updated Gradle to 1.8.
Extended Piece to allow for errors.
Gave MoleculeBuilder the ability to set quality.
Deleted an accidental import.
Upgraded to ScalaTest 1.9.2.
Replaced MustMatchers with ShouldMatchers.

The former is now deprecated.
Upgraded to Scala 2.10.3.
Enabled MoleculeBuilder to add notes.
Enabled Piece to create impaired and noted copies.

Piece.scala is growing more and more unwieldy, I'm starting to think
about redoing it...
Created a special transformed dissector type, to be used for error handling.
Gave SpecialDissectors.Transformed co[ntra]variance markers.