Allow force new instance by Symbol

I need that for ng-controller ;-)
Re-publish getBySymbol()

This was done in f346cdcb569f828f5a03163dab0771eb680914f8, but then accidentally removed in  13f6862ce0f724b39580bf3bc34a52bc182e5d1e (because I'm stupid and did not write a test for it).
Release v0.0.13