Merge pull request #58 from m-abs/master

Twig.Template.prototype.importFile didn't pass options on to the new template object.
Bump version
Add some additional debugging in Twig.parse
Add additional parenthesis handling tests.
Change handling of parentheses to token based.

Remove old hanlder that matched (...) in favor of the one that matches
start and end parentheses separately. This addresses issue #56.
Rebuild
Add tests for issue #56