Avoid UnboundLocalError when exception is raised

[mcweidner]

Adding continue to the except block, otherwise an UnboundLocalError: local variable 'tpl' referenced before assignment is thrown when trying to assign tpl["template_name"] = name after json.loads() raised an exception.

@bosd I think reading the templates should not fail completely because of one invalid template. Maybe we could also be more sensitive about the file types and only try json.loads for .json files instead of every file except .yml files (and for other file types raise a warning that only .yml and .json are supported)? What do you think about this?

[bosd]

Maybe we could also be more sensitive about the file types and only try json.loads for .json files instead of every file except .yml files

Good Idea, I was unaware of the fact folders could also contain different files.