Add info to pom.xml for public maven package #47
pom.xml metadata
pom.xml compile and encoding properties #47
Add sonatype-oss-release profile

To release snapshots: mvn deploy

To do a release: mvn deploy -Psonatype-oss-release

Also update README with Getting Started section.

Signed-off-by: Chris Aniszczyk <zx@twitter.com>
Merge pull request #48 from twitter/package_publicly

Prep for release to Maven Central