count remote threads as well when balancing CPU usage -- otherwise jEdit users and other users of the "blocking" mode may have to wait for 2 * timeout if they e.g. have 4 cores and 5 provers (the typical situation)
src/Pure
src/FOL
src/HOL
src/ZF
src/CCL
src/CTT
src/Cube
src/FOLP
src/LCF
src/Sequents
src/Doc
src/Tools