Updated WCBench tool to v1.0.

- Major doc updates
- Rebranded to WCBench from cbench_regression for clarity
- Stable functionality, clean code

Change-Id: I25ec6e5833ac4ed7a9263b3b4ee865e6800ea6fd
Signed-off-by: Daniel Farrell <dfarrell@redhat.com>
Merge "Updated WCBench tool to v1.0."