DATASOLR-40 - Upgraded to new build system.

Polished pom.xml and removed configuration now already declared in the parent pom.xml. Added template.mf to make sure Bundlor plugin can create a correct manifest. Removed obsolete resources for documentation and assembly creation that is now taken care of by the parent pom. Renamed test cases to follow the …Tests naming pattern to make sure they are executed during the build.

For more information on what is configured and enabled through the parent pom, have a look at https://github.com/SpringSource/spring-data-build#spring-data-build-infrastructure.