Fix fsnotify util upstream link and suggest newer version.

[jmhbnz]

What type of PR is this?
/kind cleanup

What this PR does / why we need it:

The fsnotify.org domain no longer belongs to the project, we should just refer to the github repository instead.

Additionally a newer version of fsnotify package gopkg.in/fsnotify.v1 has been released (2018), we should possibly be suggesting that instead of the old (2015) v0?

Which issue(s) this PR fixes:
Fixes #240

Special notes for your reviewer:

Is this util even still required? How can we check if it is still being consumed?

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[jmhbnz]

/kind cleanup

[dims]

/approve
/lgtm

[k8s-ci-robot]

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This pull-request has been approved by: dims, jmhbnz

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