Update scct deps

This this only currently builds with for sbt 0.13 with:

    ^^0.13.0
    publish

To build for both sbt 0.12 and 0.13 with this command we need scct published for scala 2.9:

    ^publish

scct is currently only published for 2.10: https://oss.sonatype.org/content/repositories/snapshots/com/github/scct/