Fixed file compare tutorial
Merge pull request #878 from KevWright/master

Fixed file compare tutorial
Change: Add note about implications of intermittent report collection.

This is an important concept. It identifies how we protect from data
loss in the event of a client not being able to be collected from for a
period of time as well as highlighting the implications of this occuring
for a larger population.
Merge pull request #879 from nickanderson/cleanup-offline-reporting-implications

Change: Add note about implications of intermittent report collection.