No timeout in dryRun()?

```
What steps will reproduce the problem?
1. Write a slow macro benchmark (e.g. large size, slow algorithm)
2. Run caliper
3. Caliper appears to freeze after "This selection yields %s experiments."

What is the expected output? What do you see instead?

I'd expect caliper to apply timeouts to the dryRun invocations, too; or give a
chance to skip them.
Performing a dry run is cheap for microbenchmarks, but for macrobenchmarks its
can be rather expensive. It would be nice, to be able to use the time limit -l
to skip benchmarks that are too slow.

In my particular case, I'm benchmarking different sorting implementations out
of curiosity. And of course I do have insertion sort and bubble sort in there,
too; but these scale really bad. My overall goal is to estimate real (average)
complexity for such implementations, so I wanted to have some measurements for
large n in there, too, to see if that improves my curve fitting.
```

Original issue reported on code.google.com by `erich.sc...@gmail.com` on 7 Jul 2013 at 11:01