Merge pull request #6 from stgraber/master

Some more pyflakes and pep-8 fixes
Fix fd-info for new syscall names

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
fallback for importing locally installed babeltrace lib on debian-based distros

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
check if cpu exists

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
graphite output of latencies

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
add mode to store one metric per-file

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
fix pyflakes/pep8 before stgraber notices

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
extract latencies per-pid in separate files

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
add support for the pid context if present

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Some more pyflakes3 and pep-8 warnings

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>