added support to save values as integers in mongo collections

[hansvn]

I added support to save values as integers into a mongo collection using the Mongo MongoInt32 and MongoInt64 classes.

When you explicitly want to save a value as an integer to a collection you can do so.
for example if you do:

$object->value = (int) Input::get('value');

The value will be stored as an integer instead of as a String.

[coveralls]

Coverage decreased (-39.67%) when pulling 046c68d on hansvn:MongoInt-support into d9f2c51 on jenssegers:master.

[coveralls]

Coverage decreased (-34.25%) when pulling b73e672 on hansvn:MongoInt-support into d9f2c51 on jenssegers:master.

[coveralls]

Coverage decreased (-34.25%) when pulling b73e672 on hansvn:MongoInt-support into d9f2c51 on jenssegers:master.

[hansvn]

Ok, it seems this pull request is redundant...
When you just save a value from an input field, just explicitly cast the value to an integer (or double or float or ...) and the value will save just fine as a NumberLong (or just the double value) in the document.

Example:

$age = "23";
$user = new User();
$user->age = (int) $age;  // this will be a NumberLong(23) in the document
$user->height = 1.82;  // this will be stored in the document as {"height" : 1.82}
$user->height = floatval(1.82);  // explicitly set the value as a float
$user->save();

Maybe it's not a bad idea to add this to the docs.