disable Jack if its to old (Ubuntu 10.04 LTS)

After 59b4b6c967d28fc803be1248fe3d509a00ad9c2f the build was broken at
least on older versions of Ubuntu. Now we just disable Jack output if
Jack is to old instead of completely failing to build.

Found and tested by Jim Stichnoth
Be less aggressive about clearing the bookmark on exit.

Refs #7994.  We shouldn't automatically clear the bookmark at the end
of the recording if the "Clear bookmark on playback" setting is false.
Fix SOAP Requests - broken since parameters were made case insensitve.