OpenTSDB rpm in maven (https://rbcommons.com/s/pepperdata/r/5456)
Use "mvn clean package" to build the rpm.
Fixed BuildData.java to include OponTSDB version.
Added dependency plugin to copy all the dependent library jars.
Added Groovy plugins to copy OpenTSDB files and directories to call rpmbuild.
Created a new OpenTSDB rpm spec to be used in maven.
Copied the rpm to the build directory to work with the existing integration tests.