Use concat_sourcemap after compiling templates

This patch fixes a problem when a different concat order is specified for the
concat_sourcemap task. The template code was using the concat task instead of
the concat_sourcemap task, so changes made to concat_sourcemap wouldn't be
reflected when JS files were recompiled after editing a template.
Merge pull request #1 from tonyarkles/use_concat_sourcemap_after_templates

Use concat_sourcemap after compiling templates