+Bug fix: result sets were not recovered correctly. Had to
+add ODR handle for zebra_search_RPN in order to make it work.
+
+Fixed a bug in regx filters that didn't do anchors (^) correctly.
+
+Fixed a bug in searches with X-Path searches sometimes giving "extra"
+hits.
+
Zebra server checks for zebrasrv.pid and refuses to start if it is already
locked by another (running) zebrasrv.