doc/doc.cfg.in: improved documentation with callgraphs
src/optimizer.c: optimize conditional jumps into standard jumps
optimizer: fixed bug revealed by recent test case
cfg.mk: added rule to easily view the test suite log files.

This is valuable for test driven development as it makes it easier to
view log files deep in the file hierarchy.
cfg.mk: cleaned up count rule
tests/.gitignore: made core dump files cleanable with git-clean
tests/working-programs/Makefile.am: removed MOSTLYCLEANFILES