- code cleaning
- cache instance validation result in case "Form::isValid()" is called multiple times
- keep locale placeholders
- remove unset placeholders
rule to handle custom callback validations
helper to handle multi-forms on the same page regarding "which form has been submitted?"
- removed redundant method for getting element values
- get post values as element values
adding renderer to handle different template types
added datetime picker
Merge branch 'release/te/datepicker'