newEdit Field support

— A roundedRect frame
— Validation support (if you supply an Error Frame) if you set required
= true in the field constructor
— a 9-slice frame to support custom size edit controls
— support for theme specified in the constructor
— Support for larger height editFields
— Initial support to slide up the edit field when keyboard pops up (by
providing a slideGroup property)
— support in storyboard to maintain a list of the edit fields on the
current scene
— support in storyboard scene to validate() all the edit fields on the
current screen
— published setters/getters for isSecure, returnKey and keyboardType
added support for custom theme for newEditField

Added parameter theme in the constructor for newEditField