Make 'empty' throw on non-string primitives and functions#812

Merged

lucasfcosta merged 5 commits intochaijs:masterfrom shvaikalesh:strengthen-empty

Oct 1, 2016

+98-11

Commits on Sep 30, 2016

Make 'empty' throw on non-string primitives and functions
shvaikalesh
committed

Commits on Oct 1, 2016