Scorched Earth Online War SEOW Code

RC of README file updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP. It remains to update all sector folder PHP files for the new include structures.

RC of DMT folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

RC of GS folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

RC of Merger folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

RC of rss folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

RC of Statistics folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

RC of Scripts folder updated for PHP 7.3 (which dropped support for the mysql extension). This RC has recast the include files, now explicitly supporting the mysqli extension in PHP.

Made MP-DUDissolve.php more strict in its management of Meta_Forces table; Cleaned up makeReconMarker() in MM-BuildMissions.php to handle array_key_exists() tests properly on $unit_specs["Sequence"] index.

Corrected MP-DUDissolve.php to manage Mission_Name in Meta_Forces to handle dissolves of meta units appropriately; Added Sequence Number check to makeReconMarker() in MM-BuildMissions.php to ensure timeouts of Pilot Reports in meta missions.

Added a new SEOW tool to challenge a unit or apparatus for its identity.