Load & publish in sbt 0.13.0.

* Unit tests (not scripted tests) pass in this rev.

* Upgrade scalatest to 1.9.1, which supports scala 2.9 & 2.10.

* Use ls-sbt 0.1.3, which only supports sbt 0.13.
Update scripted tests for sbt 0.13 (only).
Remove project/plugins.sbt from .gitignore.
Solve scalatest deprecations for 1.6.1->1.9.1.
ls note for v0.1.4.
Added ls version file