Mention OpenTSDB support in the README.
Updated all maven plugins to latest versions.

Also did some minor cleanup / reoganization of the pom
Merge pull request #137 from andrewpurcell/master

Mention OpenTSDB support in the README.
Merge pull request #165 from jmxtrans/update-maven-plugins-to-latest-versions

Updated all maven plugins to latest versions.
Fixed all Findbugs warnings

Also added findbugs:check to the Maven build to ensure no violations are added now that everything is clean.

Added guava & findbugs-annotations to the Ant build to preserve compatibility. It seems that deb / rpm generation is only available through Ant at the moment, so let's keep this working until those packages are also generated by Maven.