allfs: fix || "string" that ought to have been || error "string"
make sigmund create and clean up a test directory at the framework level: tests now run from the test directory and can use either relative paths or the $RUN_DIR variable
stash, rebaseme
allfs: remove the call to drop caches (used in a test for non-root)
allfs: add a couple of tests (5r, 5m): parallel open/read of a single/many files