Running spectests in Rakudo

"make spectest_regression" runs Rakudo against fudged suite

May 22:  31 files,  223 passing tests
May 27:  39 files,  317 passing tests
Jun  3:  55 files,  623 passing tests
Jun 10:  59 files,  699 passing tests
Jun 17:  64 files,  781 passing tests
Jun 24:  66 files, 1253 passing tests
Jul  1:  75 files, 1522 passing tests
Jul  8:  94 files, 1662 passing tests
Jul 15:  95 files, 1695 passing tests
Jul 22:  98 files, 1799 passing tests
Jul 29: 113 files, 1902 passing tests
Aug  5: 118 files, 2102 passing tests
Aug 12: 121 files, 2196 passing tests