Announce 1.7

* Fix bug with multiple array renames; detected by @royclarkson, fixed by
  @rwatler. See [issue 11](https://github.com/fge/json-patch/issues/11).

Francis Galiegue (8):
      Announce 1.6; major README updates
      Materialize bug reported in issue #11
      Revert all diff/ to last known good commit
      Fix example patch in README...
      Revert "Revert all diff/ to last known good commit"
      DiffFactorizer: throw IllegalStateException if the op type is unexpected
      Fill release notes
      1.7

Randy Watler (1):
      Correct 'removeRemaining()' Diff creation in postLCS()