Added Spring Data

* Fixed EAR layout
* Fixed JPA model
* Added Spring Data for repositories
* Added integration tests for JPA
Merge pull request #19 from slaskawi/model_implementation

Added Spring Data
Merge pull request #18 from vibe13/master

Fixed ProjectBuildConfiguration and tests
Add jenkins-client and remote repository for 0.2.2-20141202
Refactoring repository-manager SPI to capture total repository configuration (sort of a repo environment) in a single object that can be used to reference the environment without knowing composition details. Adjusting domain model, other SPIs in response to these changes.
BuildDriver implementation.
Update to upstream api changes.
Merge jenkins build driver.
Disable build driver test.
Merge pull request #21 from matejonnet/master

BuildDriver implementation
Rename id to avoid clashing
Clean organize imports; remove reference to Project from ProjectBuildResult (already referenced through ProjectBuildConfiguration)