Fixed parse error with variable names beginning with null/true/false
Added experimental scala-style declarations
Evaluator instance is now reused between evaluations
JSON literals now use argument separator
[maven-release-plugin] prepare release v3.4.0
[maven-release-plugin] prepare for next development iteration
Scope#get now throws custom NoSuchVariableException
Removed special grammar handling for isDefined function
Update to scala 2.10, parboiled 1.1.4, guava 14
[maven-release-plugin] prepare release v3.4.1
[maven-release-plugin] prepare for next development iteration