Add format parameter to Form::selectMonth
Ensure date attributes on an Eloquent model are output in same format
when the model is converted to an array as if you were to directly
access the property on the model.
Ensure there are dirty fields when performing update - just in case the updating events reset the fields
changes and unit tests
Added standard unit tests for SqsQueue and SqsJob which are compatible with 4.1+
Support mixed target data in data_get
add distinct pagination test
move comment to appropriate location
add multiple column count support for distinct pagination
fix spacing
Fix sometimes validation for nested arrays
Add morphClass property to allow polymorphic relations on extended models
Allow any 'callable' action, not just anonymous functions

If creating routes dynamically, like the following:

```php
$router->getRoutes()->add(new Route(array('GET'), '/foo', array($this, 'xxx')));
```

... then the previous code will fail because `php array($this, 'xxx')` is not an instance of Closure, however `is_callable` will work just fine.
Find any 'callable' action, not just anonymous functions
Make Paginator::getUrl have priority over appends
Fix many to many polymorphic pivot updates

`$morphType ` set by `setMorphType` is being included in queries from x->pivot->save() and the like. As the object is being added as a public data member on an object with an empty original, it is treated as an attribute and added as a column to the queries. As this column doesn't exist, the query will be erroneous.

https://github.com/laravel/framework/issues/3693
Tweak test
implement Model::unsetConnectionResolver
Fix Request::segments() ignore segment "0"
Minor cs fixes