Changes to remove compiler warnings on OSX build.

add command is sent from the 'typeId' field of the performance eval. MsgList.

Also changed column order of the output file.

 1. cmScMeasCalcVal(): changed method of calculating the first and last
MIDI event in p->midiBuf[] and first and the score location window area
defined by 'bli' and 'ln'.

2. cmScMeasExec(): Set p->vsi and p->vsli to indicate that no new 'sets'
are available prior to the early return when locIdx==cmInvalidIdx.

measurements from a time-line file.

because it is now used as the 'bump' mode coefficient more often than it's original
intent as a threshold offset in the spec. dist. envelope following modes.

This would might be better accomplished inside cmProc4.c:cmScMeaExec().

so that it can correctly release the handle if the file read/parse fails.