Added a getInner method for retrieving the inner exception

Fixing has_one iterations

Signed-off-by: Dejan Geci <dejan.geci@gmail.com>

Fixed wrong return type in phpdoc

Update laravel/helpers.php

Huge performance increase on Eloquents relationships

The e-helper and the __-Helper used the core-classes. 
So if I would like to override them, the helpers would still use the core-classes.
See this thread for further explanation: http://forums.laravel.com/viewtopic.php?id=2656 

Fixes XSS vulnerability in Profiler

Signed-off-by: Daniel Bøndergaard <db@helmstmt.com>

Performance enhancement for Str Class (see pull request #1180)

Fixed a problem with `Eloquent::get_dirty`

Fixes language URI routing issue

Correct broken links in docs

Fix a tiny typo

Auth token now nulled on logout

[#1261] get_key now pulls from $original instead

This is in reference to issue #1261, where Model->get_key() returns
the key from the $attributes instead of from the $original property.
This breaks the functionality of a model with a primary key that may
change, as the SQL generated will be something like:

UPDATE `model` SET `key` = 'new-key' WHERE `key` = 'new-key';

Which won't update the model in the database.