class.wca changes for MaxSafePower, plus formatting, renaming, and bug fixes

Removed Facility column from WCAs list.
Fixed WCA search function.
Fixed missing left margins.
Fixed leading zeros in SN in list
Fixed link to "in front end:"

renamed:    wca/GetFEData.php -> wca/GetWCAData.php
renamed:    wca/footer.php -> wca/wca_search.php
WCA.ini output has ENTRIES=0 if no limit defined.