Merge pull request #1 from mcjimenez/master

Added a DELETE operation for the unregister, and a test script
OPTIONS wasn't working. Gotta work on those tests
Merge pull request #2 from AntonioMA/master

Missed a parameter change
Missed allowing DELETE on OPTIONS
Merge pull request #3 from AntonioMA/master

OPTIONS wasn't allowing DELETE
Removed unneeded legacy new