fix typo
reverting default template name converter to class case...

fixes #953

@tmeasday, sorry about this. But this is how all the examples in the
guide look, how it's taught on EM and also how the em command line tool
works by default. So I think quite a few people will be using the class
case and this change will cause confusion. I will add a note to the
README explaining how to change the template name converter to the
identity. I'll do this on the next commit.
add template name lookup explanation in guide + todos.

see: #953, #922
show global config layout if available and route not found

fixes #955
fix guide example to use Meteor.userId()

fixes #945.
fix UI.controller() to Iron.controller()

fixes #925
fix server controller issues
bump version to rc.0