Log Message:
Changes 2.0.6:
-Fix: Removing extranous '//' from the perl script.
-Fix: slon can segfault while shutting down.
-Fix: typenameTypeId() changes signatures in 9.1
-Fix: if slon gets confused waiting for its child it will exit.
-Fix: distclean deletes the slony_logshipper flex/bison generated files.