* Move get_suggest to widget abstract

* Move get_suggest to widget abstract class from interface
Revise widget for easier resuse

* Abstract do_validate_settings for easier reuse
* RESOLVE Add widget option defaults
* RESOLVE Move form_instance to abstract class Aihrus_Widget
* RESOLVE Move get_suggest to abstract class Aihrus_Widget
* RESOLVE Remove tw- reference
* RESOLVE Use widget args than globals