Be more lenient when comparing /proc/maps and cached mappings, and sundry test fixes.
Track the kernel name (comm) of tasks.
Add files missing from previous commit.
Fix broken FUTEX_LOCK_PI semantics.
Add a -g/--goto flag to advance to a specific event before starting debugging.
Make sched_setaffinity usable by a tracee, as long as it's setting affinity to process 0 only.
Merge pull request #676 from rocallahan/setaffinity

Make sched_setaffinity usable by a tracee, as long as it's setting affin...
Prevent tracees from cloning UNTRACED tasks.
Remove unused #define.
Warn the user when a tracee process is cut down by a fatal signal.
Add Task::priority and always run runnable tasks with smaller priority values first.
Move README to markdown and add link to PR checklist.
Monitor setpriority(2) calls to track the requested priority of the tracee.
Merge PR #682.
Merge PR #683.
Fix broken build.
Print a more informative error message when an x64 image is seen.
Add an |rr dump -r| option to dump trace info in the old-style format.
Add an fcntl F_GET/SET_EX and clean up some redundant test code.
Restore syscallbuf record data one record at a time.