implementation of DynECT HTTP Redirect service API

Hi there! I needed support for the DynECT HTTP redirect service for one of
my sites, so I whipped up the code to make that happen in JClouds.

Would this be an interesting code submission for y'all? If so, I'd like to add
tests and make whatever changes/adjustments you think are necessary to 
make this suitable for the project. I just figured I'd ask for some advice about
how to write bulletproof test cases in JClouds and what tests I should write so
that they wouldn't be brittle or mess with the existing suite in any way.

Thank you in advance for your kind consideration!

All the best, talk to you soon,

-Sunny