Fixing issue phalcon/incubator#22 and other improvement of Phalcon\Session\Adapter\Database

SQL-queries were changed to prevent possible syntax errors and injections.
Sessions garbage collector callback was implemented.
The source code was formatted with php-cs-fixer.
Fixing issue phalcon/incubator#18
Merge pull request #35 from endeveit/master

Fixing issue phalcon/incubator#22 and other improvements
Bug fix. Contents are not output when cache fault.
Merge pull request #36 from ken05216/patch-1

Fix -> Contents are not output when cache fault.
Http Client

Http Uri utility, Request response classes and Providers for popular
libraries
Readme file moved
Merge pull request #37 from tugrul/master

My Http Client draft
Namespace Change

Moved to Phalcon\Http\Client from Phalcon\Client\Http
EOL Conversion

I converted line endings to UNIX from DOS
Merge pull request #38 from tugrul/master

Phalcon\Client\Http namespace change
Add autoload for composer
Update composer.json
update composer.json
Merge pull request #39 from SneakyBobito/master

Add require to composer.json to allow autoloading from composer
adding doc blok for ides
Merge pull request #40 from SneakyBobito/master

adding doc blok for ides
Paginator navigation menu renderer
File extension registry…
Add Twig construct can input Twig Environment Options