Fix some poorly escaped regexes in defaults.jsilconfig
Provide better feedback on the load status of given assemblies (stubbed vs translate vs proxy) in JSILc and AssemblyTranslator
Add a fix and test case for issue #184, where IntroduceVariableReferences was erroneously skipping over nodes in complex binary expressions.
Add an optional filter predicate to the VisitChildren function that allows filtering which children are visited.