Generating a test suite with breakdancer.

There are still a few ops not handled, but many are.

cbugg: close bug-453
Validate responses in the breakdance test.

cbugg: close bug-455
List situations that aren't covered.
Fix some incorrect % formatting vet picked up.
Don't need smashed test names since we're not generating code.
Added increment breakdancer test - fixed initialization bug.
Added decr - fixed underflow.

cbugg: closes bug-457
Added {incr,decr}WithDefault
Test deleting with CAS.
Handle proper map input (doc, meta) vs. (doc)

cbugg: bug-452
Handle non-array key grouping.

cbugg: bug-452
Handle group keys that aren't arrays or strings.

cbugg: bug-452