Debug, dump improvements
Fixing issue #2688 allowing to configure empty arrays.
fixing crypt [ci skip]
Integrate Utils\Slug into Tag::friendlyTitle()
Mvc router group, "move groups of routes to separate files" fix
Tag, setDefaults merge #2288, #2686
Merge pull request #2691 from mruz/2.0.0_slug

Integrate Utils\Slug into Tag::friendlyTitle()
fixed crypt and pass all unit tests
Dump, detailed fix
Fixes to Mvc\Model\Resultset\Complex, enabling crypt tests
Fixing build
Merge pull request #2693 from mruz/2.0.0

[2.0.0] random improvements
Merge pull request #2689 from wandersonwhcr/2.0.0-issue2688

Fixing issue #2688 allowing to configure empty arrays.
Enabling ModelsBehavior tests
fixing Cache [ci skip]
Fixes to virtual foreign keys, enabling ModelsForeignKeysTest
Merge branch '2.0.0' of https://github.com/phalcon/cphalcon into 2.0.0
Using latest Zephir [ci skip}
Forcing create unit-tests/cache
fixing Cache [ci skip]