Added variable filtering and validation

Validation logic was existing but it was reworked to abstract out checking for
required fields initially and then sanity checks after the fact. Filters are
applied before validation but after checking existence. No support for _PUT and
_DELETE at the moment as those do not exist as super globals natively in PHP.
Dropped response class

Seems pointless to have class that had a single method that basically contained
all of the shit that the resource already had and knew. Moved respond() method
to the response class and moved all of the response validation logic and errors
from the router to the response class.
Dropped the filter class

Will revisit if there's ever a need to have access to it directly. Until then
it will find it in the Resource class.
Added `password_hash` filter

Defaulting to PASSWORD_DEFAULT, will expand to other options if the need arises.
Moved validate logic into resource

I couldn't find a single scenario where I was using the Validate class in my
site level code. Dropped the overhead of calling a static class method multiple
times on a page by moving the logic in the Resource class. Also changed the
response to always return the errors as parameter => array. This allows a
developer to choose if they want to display one error or all of the errors.
Added powered by pickles header
Renamed secure flag to https
Working on basic auth and dropped log class

I personally haven't used it in years so I'm just getting to the mindset that
it's not a very useful piece of functionality. Nginx can easily log all of your
requests and any time I need to troubleshoot SQL (not all that often) I do it
directly without using the class.
Worked through basic authentication
Moved files and added namespaces
Namespaced the fuck out of Pickles
Cleaning up a bit

The plan is to drop this file entirely and move the logic off to the config
class itself which will be instantiated by the router.
That abridged README

Cut all the bullshit out so I could write out a better README once the system
is back to being stable and tested.
Feeling frisky, added PHP 5.3 back to the tests

Curious if I'd be able to get back to PHP 5.3 compatibility to an extent.