fix template name

Working with namespace mean, that we need a name uses the namespace.

https://github.com/mheap/Silex-Assetic/issues/35
Merge pull request #36 from dominikzogg/patch-1

fix template name
Merge branch 'release/1.0.3'
Merge tag '1.0.3' into develop

Add support for namespaces when loading Twig resources