Adding CSS support for fields in the new attachment edit popup

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removing optgroup from select fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removing optgroup from select fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removing optgroup from select fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removing optgroup from select fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Removing optgroup from select fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updating WYSIWYG function list

Signed-off-by: Elliot Condon <e@elliotcondon.com>