Version 2.2.2

Fixes

• JSON Patch move and copy operations now use add semantics for their target locations. Previously it was not possible to move or copy to the end of an array with the special - index, and we would silently append to arrays given an index greater than the array's length. We now raise a JSONPatchError if the target index is greater than the number of elements in the array.
• Fixed JSONPatch move operations with immutable Mapping or Sequence source objects. Previously we silently ignored the internal remove op if the source was immutable, making the operation a copy. Now we raise a JSONPatchError.