Class dependency on custom behavior

From
use Phalcon\Mvc\ModelInterface,
    Phalcon\Mvc\Model\BehaviorInterface;

to
use Phalcon\Mvc\Model\Behavior,
    Phalcon\Mvc\Model\BehaviorInterface;
Merge pull request #193 from anggiaj/master

Class dependency on custom behavior
Added support for displaying type of class in header + some tiny fixes
Merge pull request #195 from Cinderella-Man/master

Added support for displaying type of class in header + some tiny fixes(master)
Fixed ODM fields example
Merge pull request #196 from lobostome/patch-1

Fixed ODM fields example
Volt example: link_to for a named route with class
Update di.rst
Update di.rst
Translated section "Implementing your own DI" and correcting grammatical errors.
Merge pull request #198 from JimmDiGrizli/patch-1

Translated section "Implementing your own DI"
Just some spelling and grammar fixes.
Fixed some grammatical mistakes
Fixed mistakes and translated some suggestions
Fixed wording and grammar on the Model adapter line.
Merge pull request #200 from JimmDiGrizli/patch-1

Fixed some grammatical mistakes
Merge pull request #199 from richmulhern/patch-1

Minor spelling and grammar fixes in Unit Testing Documentation
Merge pull request #201 from JimmDiGrizli/patch-2

Fixed mistakes and translated some suggestions
Merge pull request #202 from fillmoreb/patch-2

Fixed wording and grammar on the Model adapter line.
Some minor typo and grammar fixes.