v2.0.0

• v1 no longer supported. It is not advisable to use
• directive.a, directive.div, directive.input and all other elements have been added.
• dirIf, dirFor, dirRef, dirShow, dirKey can be used with directive elements
• <Switch />, <For />, <Case />, <Default /> components have been added.
• useClassName has been added (className for directives have been extended)
• Readme has been updated