Pending from incomplete transaction - status should NOT be COUNTED by default since that blocks people from re-trying their registration

Currently we set the 'Counted' property to TRUE for 'Pending from incomplete transaction'. This is not a great default value, since folks who hit problems or abort the registration at the processor site aren't able to re-attempt their registration later (we give 'already registered' message).

implementation
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1. Modify defaults for new installs to set COUNTED = false for this status
2. Upgrade script should reset COUNTED to false for this status (since MOST folks are almost certainly unaware of this functionality).
3. Include this message on the post-upgrade success screen:
"We have reset the COUNTED flag to false for the event participant status 'Pending from incomplete transaction'. This change ensures that people who have a problem during registration can try again."