This reverts commit 5a92f586.

SSDM-12855 : TS Vector too big when migrating : apply TS vector changes to the new db version (189) that was created in the meanwhile within SSDM-12850

SSDM-12817 Added a cleanup task to the build script which removes full-text-search-document-version.

SSDM-12850 : Author FK Key - add author FKs to x_properties, x_properties_history and x_relationships_history tables

SSDM-12855 Lowered the truncation limit because the previous one produced too big TS Vector after all.

SSDM-12855 Added truncation to the places where TS vector is calculated to prevent it from being larger than 1MB.