#148 red
#148 green
#148 refactor: move throwing from ConfigRScriptExecutor to ScriptConfigLoader
#148 refactor (red): replaced ConfigRScriptEngine with shims copied from scriptcs
#148 green: bypass execution when code is blank
#148 red: added tests for config files containing only comments
#148 green: hacked into the stacktrace to see if came from Roslyn
#148 refactor: fix StyleCop violations
#148 refactor: fix code analysis violations
#148 refactor: remove redundant IConfigRScriptHostFactory
Merge pull request #149 from adamralph/148

fix for #148 - missing closing brackets