Feature Request: Add a high level dashboard with overall test volume and basic stats

[aww-aww]

To build a solid community around MobiPerf and encourage people to continually run the app, it would be good to provide a high level dashboard with some aggregate details such as:

• total number of tests run (cumulative graph)
• breakdown of success / failure by test or in aggregate
• breakdown of which countries the the app has been run in w/ avg. daily volume (top 20?)
• avg + st. deviation for the tests that have a single numeric result (ping, HTTP throughput, resolution time)
• ...