adding ability to toggle autoescapability for groovy's markup templating engine
removing config through "other" properties
exposing templateconfiguration directly to guice
removing getter from templating module and exposing via guice registry
removing config as member and converting to a singleton, adding tests that demonstrate template configuration
Merge pull request #377 from danhyun/autoescape-markup-template

Make autoescape true by default for groovy's markup templating engine.

Closes #376.