Source code checked in, #a453fe935c7f30b8285ca6d9a34bf2165b4b7805

Version 5.4.6: Expanded canonical reference support to all equatable value types; fixed a bug preventing assembly-qualified type names from being used with ScriptEngine.AddHostType(); fixed double execution of exception-throwing code via C# dynamic (Issue #105); added IScriptEngineException.ExecutionStarted; fixed cross-engine double execution of exception-throwing code (Issue #108); tweaked V8 debug protocol implementation to support non-Eclipse debuggers; added tests for bug fixes and new APIs. Tested with V8 5.1.281.50.