Escape translations in custom template tags.
Escape translations in custom template tags.

See #737.

vaishaliagola27/_s,andbaz/launchbaz,jchck/jchck_,carl-alberto/business-portfolio,andbaz/launchbaz,jchck/jchck_,vaishaliagola27/_s,carl-alberto/business-portfolio,vaishaliagola27/_s