Update angular.namespacer.js

Namespace separator is now customizable instead of being hard-coded as "."

Those of us who use ng-annotate can now use angular namespacer, since we can set the delimeter to a character that is allowed to appear in variable names (e.g. "_")
Fixed name problem

I should test small patches rather than typing them straight into the github online editor...
Merge pull request #1 from battlesnake/patch-1

Namespace separator is now customizable instead of being hard-coded as "."