Update Server Code Statistics

[William Bradee]

Server code statistics display info about Test Runs.

I suggest Test statistics only be available within the Test screen.

Then the Statistics at the top level show statistics of all invocations of the server code.

It would be nice, also, to see additional Runtime stats:
Average:
Max:
Min:
Last:

[maxkatz]

The Statistics page should display all invocations, not just test invocations. I'm going to check this. If only test, then we will definitely update it.