* Added an 'IMPORTER_LINES' table to the database.
* Incremented the database version to 295.
* Refactored the log importer code to use the static 'IMPORTER_LINES'
table.
* Added an 'EVENT_LINES' table to the database.
* Incremented the database version to 290.
* Removed the 'RDEvent::preimportTableName()' method.
* Removed the 'RDEvent::postimportTableName()' method.