Fix integration tests for region 0.
Fix integration tests for region 0.

- Remove checks to ignore region 0 in several tests.
- Explicitly avoid the unmarked region in the trace runtimes test
  because of the simple way total runtime is calculated.  The region
  runtimes test will vet region 0.
- Correct name of trace runtimes test.
- This fixes #96 from GitHub issues.

Change-Id: Ibba1f68c0760132be87d85bde9083e3991a1b84f
Signed-off-by: Brad Geltz <e42f3ad4099980ea02f08e076efbee5cf9d4a803@intel.com>

cmcantalupo/geopm,geopm/geopm,geopm/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,cmcantalupo/geopm,cmcantalupo/geopm,sssylvester/geopm,geopm/geopm,sssylvester/geopm,sssylvester/geopm,sssylvester/geopm