more robust and portable invocation of kill as bash builtin, instead of external executable -- NB: /bin/kill on Mac OS X Mountain Lion chokes on Linux workaround from 3610ae73cfdb;
more robust and portable invocation of kill as bash builtin, instead of external executable -- NB: /bin/kill on Mac OS X Mountain Lion chokes on Linux workaround from 3610ae73cfdb;

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle