Move lift-json-scalaz to Scalaz 7
* All tests pass, but only compiling for Scala 2.10.0 at the moment.
* May need a lift-json-scalaz7 subproject to provide both Scalaz 6 and Scalaz 7 support.
Adds lift-json-scalaz7 (Scalaz 7 support).
* Adds a new submodule for lift-json-scalaz7.
* Maintains lift-json-scalaz for Scalaz 6 support.
* Updated README to correspond to Scalaz 7.
Revert "Move lift-json-scalaz to Scalaz 7"

This reverts commit 765ae74a3cb318224ece66be3ffeff81271e34df.
Merge branch 'scalaz-seven'
Update contributors
Merge pull request #1424 from taylorleese/master

Adds lift-json-scalaz7 (Scalaz 7 support). Based on Joni's mailing list thumbs up, I'm applying the patch