[Plugin: WP-o-Matic] Better dates support needed

The “Use feed date” option needs to be multiplied into several sub-options if activated:

– Posts with date/time in the future:
– Do not import, or
– Use current date/time, or
– Use original post date/time

– Posts with date/time minor than the last update (as much time as the campaign frequency):
– Do not import, or
– Use current date/time, or
– Use original post date/time

This is a MUST because if the source messes up with dates we have a way to control what to do in each specific situation.