stub counter spec
add more requirements
A tiny handful of passing specs
Test validating what we increment/decrement by
Implement increment validation
the hello world of counter support
increment/decrement specs
add options to value, also add value and make to_i an alias of it
Add protobuffs messages for counters

Includes other messages to pad out the message numbers
Make the case block of decode_response easier to read
Decode CSBucket, CounterUpdate, and CounterGet responses
Beefcake backend for getting and posting counters
HTTP counter update change to support return_value
Message codes no longer monotonically increasing integers, let's adapt
Support incrementing and returning values, beefcake
Decode CounterGetResp with the correct class
Specs use curent backend arguments
Add quorum error handling
bucket based counter initialization
more coherent error handling and decrement API