Make Gruntfile.js jshint clean
Unwrap lodash object when printed by shell

The shell will check if an object implements `shellPrint` or `tojson` to
represent the object as a result of the last command. Add `shellPrint`
to the lodash wrapper object to avoid to see the wrapper object source
code :-)
Declare known globals in .jshint file
Store the last seen value in shell as ___ans___
Add select jsonpath to cursor