fixed shifts not testing zero result and flag when last 1-bit is shifted out

fixed BRK not tested with interrupts disabled

fixed decimal adc/sbc immediate only testing carry

Merge pull request #3 from allender/master

fixed RMB/SMB tested when they shouldn't be tested

Fix conditional test Rockwell/WDC opcodes

added config switch to disable decimal mode tests

immediate opcodes now execute in data RAM

added switch to disable self modifying tests

minor improvement to relative address test

added bin/dec switch test

added feedback filter

added binaries

removed zipped version

added report to standard output option