Each doesn't execute callbacks when wrapped

[MikaAK]

I recently upgraded to v3.1.0 and i noticed that the each method has broken when using it via a lodash wrapper.

I also tested these in the console on the lodash website. Perhaps there's a change I'm unaware of but to break the functionality of each seems weird!

Not Working

_([1,2,4,5,6,9]).each(function(c) { 
  console.log('hi')
})

Working

_.each([1,2,4,5,6,9], function(c) { 
  console.log('hi')
})

[jdalton]

Please read the changelog for a rundown of the breaking changes.

Chaining is now deferred until an implicit or explicit value() is requested. The _.each method returns the provided collection so does not warrant an implicit value() call.

// working
_([1,2,4,5,6,9]).each(function(c) {  console.log('hi') }).value();

The documentation for _.each has also been updated to reflect this.
Related to #785, #877, #878, #907, #960, #1017.