Tests, integrate jsdom
Support for jQuery placeholders
Date, placeholders, fix

Fixed date input calendar
Added support for placeholders to date input
Datetime input, placeholders

Datetime input uses placeholders instead of labels
Time input, use internal objects
Cleaning date input code
[fix] Don't fix calendar month line height
Datetime, test calendar behaviour
Generic input, extra callback

Added callback job create_el_attrs into input construct
[fix] Multi checkbox construct
Number input, min/max/step attrs
Test checkbox construct
Number input validations
Test number input values