Verify gtest with URL_MD5
Merge pull request #48 from mattyclarkson/gtest_verify

Verify gtest with URL_MD5
Check the number of benchmark tests ran

Previously the benchmark_test program executed the benchmark tests to make sure
the API was working but was not checking the number of tests that were
completed. If the regular expression matching breaks, zero tests could be ran.
Similarly, if one of the APIs breaks and doesn't run the correct amount of tests
then `make test` will catch this.