Huge performance increase on Eloquents relationships

Fixes XSS vulnerability in Profiler

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.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>

Signed-off-by: Joel Marcotte <skaner@gmail.com>

Added a warning about using Controller::detect() for routing.

Definition list support (#1202)

Trimming whitespace before doctype tag

When using layouts and sections