Added support for both cancel_sm and response and query_sm and response.
Added unit tests for query_sm, query_sm_resp, cancel_sm and cancel_sm_resp
Merge pull request #20 from idpromnut/master

Added support for cancel_sm and query_sm SMPP messages. Correct encode/decode unit tests added.
Added integration demo (QueryCancelMain) for use of query_sm and cancel_sm commands. This was testsed against the SMPPSim simulator <http://www.seleniumsoftware.com/user-guide.htm>, and successfully queries the sent message state and cancels its delivery.
Merge pull request #21 from garthpatil/master

Added integration test for query and cancel.
added some delays after session.close() to a test that was intermittently failing.
Merge pull request #22 from garthpatil/master

Added delay after session.close() to a test
[maven-release-plugin] prepare release version-5.0.1
[maven-release-plugin] prepare for next development iteration
Added 5.0.1 release notes to CHANGELOG.