Remove PRINT_TEST_BANNER for consistency, it was sparsely used.
Make test framework less verbose and more beautiful.
Fix permissions of .cf files in acceptance tests.
Break the acceptance tests to many different subtests.

Instead of calling the "testall" script to run them all, we now call
"testall $FILENAME" for each .cf file in the testsuite. Hopefully now we
can easily get parallel test harness and beautiful colors.
PRINT_TEST_BANNER was reintroduced, so here it goes in again until it's permanently removed...
Enable parallel tests harness.

We should now be able to do "make -j4 check". Due to automake limitations I
create a temporary Makefile during autogen.sh, so every time a check is added
autogen.sh should be rerun.