quert builder interface updae
Merge pull request #2053 from Cinderella-Man/2.0.0

[2.0.0] Query builder interface updae
Changes to build script
Merge pull request #2057 from Cinderella-Man/2.0.0-phpunit-xml

[2.0.0] Changes to build script
Fixing class-hinted parameters checks
Fixing class-hinted parameters checks (2)
Fixing bugs in Phalcon\Db