tag.zep [skip ci]
Fix errors by zephir compile and fix optimizers

- fix tag.zep file

- fix CssMinOptimizer and JsMinOptimizer
Merge pull request #1884 from zaets28rus/fix_build_2.0

[2.0.0] Fix errors by zephir compile and fix optimizers
Using latest Zephir, fixing concatenation with chars
Using return_value as string value [ci skip]
Using latest Zephir
Checking if instantiated classes do implement constructors
Adding jsmin/cssmin to compilation
Fixing code generation of zephir_has_constructor
Using latest zephir
Avoid using ZEPHIR_CPY_WRT in call_user_func_array optimizer
Validation setLabels
UT for Validation Labels [ci skip]
UT for Validation Labels [ci skip]
Validation setLabels fix
Validation uniqueness fix
Fixed a typo
Phalcon\Debug\Dump display colorized var dump [ci skip]
Uniqueness, remove unused variables [ci skip]
Dump object private and protected attributes [ci skip]