removed protocol package as it's obsolete now
made equals method in DataUnit non-final to make it "mockable"
adapted build.gradle in the dsl project to allow integration tests and
support for the native library via the java.library.path property
split Vocabulary to have better decoupling. It's separated in Methods,
Objects and Vocabulary now. Methods contains all the pdu methods,
Objects contains the pdu objects, Vocabulary contains the send and on
methods.
added unit tests for the Vocabulary class
added ScriptTest class to test example scripts
added example scripts for testing in the ScriptTest class