Fixed some aspects of UWSVN not loading
Fixes #244
Was removed by Jetbeard's 278fc78408d72e35896559f1b6f771a8c4caad71
but the reason UWSVN was loaded by Wire was to ensure Wire loaded first
E2: Fixed setTrails failing in an obscure case
If the ent already had trails, but the trail SENT was removed via lua, like PP
Fixes #245