Match Filesystem listing with Filesystem Gauge name.
Both are now FS #n.
Remove unused code.
Removing contributors file since it is always out of date and GitHub has a better record anyways.
cAdvisor 0.6.2
Register inotify watches on all cgroup hierarchies.

We used to only register them on the first hierarchy that was created (I
think this was unintentional). This caused some weird edgecases where
we'd try to delete a watch event we didn't create. It is an error we
ignore today (since we fix it in < 60s) but delays our destruction of
the container.
Update testify dependency.
Added missing space to README.md
Added a version flag to print the version of cAdvisor per #329.
Updated description of version flag

Updated description of version flag per a [comment](https://github.com/google/cadvisor/pull/330#discussion-diff-20919796).
Ignore update errors for dead containers.

This adds an Exists() interface to detect when the container is dead.
Before reporting an update error we check is Exists() is true.

Some documentation was added as well.
Remove unused samples flag.
Adding runtime options docs.

Also some cleanups of other docs.
Updating link to runtime options.
Report error while fetching network stats.
Added a Filesystem gauge
Made the progress bars and text dynamic #263
Updated the humanize function
Added HTTP Auth and HTTP Digest authentication #302
Cleanup and minor fix for digest
Added name to the AUTHORS file