Rename to Flow Commands
Update pom.xml and .travis.yml for the new repo url.
Update gitignore and gitattributes
Update pom.xml, minor header changes, and flow-cerealization
Add Gradle build support so Maven doesn't get lonely
Make gradlew executable
Update oss-parent and switch to oss.sonatype.org for readme dep links
Add missing graddle-wrapper.properties
Update build.gradle and readme with correct dependencies
Fix Javadoc warning where source was supposed to be sender