Added SafeValidator.
minor fixes of debugger.
bug fix of form generator.
finished rule generation for model generator.
Fixes #790: added visible for Nav and Dropdown
Fixes #21: implemented jQueryUI Slider
Fixed typo and code style
More tests for ArrayHelper and Inflector
fixed typos in ArrayHelperBase phpdoc
Added note about theme asset bundle to bootstrap widgets guide
more tests for FileHelper
Finished model generator.
css fix.