Refactor ActionView template handler.
Add support for server-side partials.
Use app/assets/javascripts/templates as the default shared template path.
Update README for new shared template path.
Make #compilation_string protected to clarify it is not part of the public interface.
Expose JST as a top-level local variable.
Allow partials to be called with dot notation.
Add spec for nested partials.
Ensure compiled partials aren't included more than once.