- allow normal tokens to be sent

- optimize mqtt-send performance (resolve handler only once)

- make compiler jastaddCompliant
- allow multiple input grammars and connect files
- compiler output are (possibly modified) input grammars, and always three files (MqttHandler.jadd, RagConnect.jadd and RagConnect.relast)

- rename nonterminal (M)Ros2Rag to (M)RagConnect, and attribute ros2rag to ragconnect
- rename starter to safety
- make receiverstub, receiverstub not depend on safety
- make tests not depend on common (copied proto files)

- added fail-fast behaviour to mustache (if a name/method can not be resolved)
- enabled logging of mustache (using log4j)

- allow multiple mappings for update definitions
- in mappings, remove target variable name and prepare for more types, e.g., arrays
- add required option to specify name of root node in Compiler
- copy MqttUpdater in compile step

- renamed scanner and parser to Ros2Rag{Scanner,Parser}
- changed Compiler to not use System.exit throwing exceptions instead and have a dedicated run method
- implemented ASTNode.globallyResolveTokenComponentByToken and UpdateDefinition.resolveMappingByToken

- changed compiler to accept two additional required parameters "inputGrammar" and "inputRos2Rag"
- update ros2rag grammar according to latest draft
- begin with parser (missing resolving amongst others)
- parsing in test kind of fails because of leading comment