unsubscribe landing page added
is possible to send a unsubscription with only the id
refactoring
index as template
ignores index.html because it is autogenerated
fixed  for the template
template should show the message with the data available
unsubscription is builded when there is an id specified
refactoring code and when unsubscriptions is sent again after success, it is showed as success too
support team eamil is not showed if it is not specified
fixed template
improved message for unsubscriptions
message for unsubscription updated
improved unsubscribe landing page, message, options and favicon
improved unsubscribe message
message unsubscribe without options