1.4.1

• fix invalid MongoDB object for not_begins_with, 'not_ends_with and not_contains operators
• new builder events: addGroup , deleteGroup, addRule, deleteRule
• new plugin: Filter description
• add size filter option for text inputs
• add textarea input type + size and rows options
• add default_value filter option
• add allow_empty builder option
• ease AMD usage with new version of jQuery.extendext