Cast Paginator::currentPage to an integer

Not a huge deal, but it ensures getCurrentPage() returns an int instead of a numeric string.
fix fillable.
Merge pull request #1553 from danharper/patch-1

Cast Paginator::currentPage to an integer
Fix hard-coded DateTimes in Eloquent. Closes #1554.
Implemented "changes" artisan command and converted change log to JSON.
Return empty array on null passed to Collection::make.
Exposed loaded relations so that they can be inspected.
Adding test to ensure that fillable always overrides guarded.

Signed-off-by: Ben Corlett <bencorlett@me.com>
Merge pull request #1566 from bencorlett/feature/whitelist-unit-tests

Adding test to ensure that fillable always overrides guarded.
added status bades.
Merge branch '4.0' of github.com:laravel/framework into 4.0
Merge pull request #1576 from atrauzzi/master

4.0 PR for allowing populated relations to be crawled.
Tweak code formatting in Eloquent model.
Add isEmpty method to MessageBag. Closes #1579.
Added prefix to APC cache store. Cleaned up methods. Fixes #1573.
Consider mailto: and tel: valid links in HTML builder. Fixes #1569.
pull pretend value from config.
change log.
Allow for checking whether there is any old input by making parameter optional.
Fix bug in MessageBag isEmpty method.