Merge pull request #1 from gmaslowski/REMOVING_DRY_IN_HTTP_CLIENT

Removing DRYs in JenkinsHttpClient.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:RisingOak/jenkins-client
Merge pull request #2 from RisingOak/master

merge from RisingOak
Merge pull request #3 from RisingOak/master

FF to RisingOak.
Bumping used versions. Using Xstream package as the same in jenkins-test-harness (other failed, with not found method). Cleaning up formatting and readability.
Differentiating between Unit and Integration tests. Integration tests runned by failsafe, unit runned by surefire. Repackaging tests. Renaming tests and test methods.
Adjusting the description of githubs readme.
Merge pull request #44 from gmaslowski/ROJC-36

#36