Add missing _.mapValues type definition
Add method documentation
Use tabs instead of spaces, like the rest of the file
Use generic parameter
Merge dca457aa7193072d75c295e974e53228739756fc into 340a88495788395a2479be27eef82985b7e3adab
lodash: improved _.mapValues definitions
Merge pull request #1985 from Igorbek/master

LoDash: added _.mapValues