VB: cut down worst runtime offenders in vb suite
BLD: test_perf, progress indicator, catch kb interrupts
BLD: test_perf, progress indicator, catch kb interrupts
BLD: add --ncalls to test_perf, to override excessive runtimes in vbench
BLD: test_perf, adjust column widths
BLD: test_perf, print pickle filename if specified
BLD: test_perf, supress Futurewarnings, DeprecationWarning