WIP add counter messages
WIP add indexes to counter update
WIP make the 'value' field for counters a singned int
WIP add counter messages
WIP add indexes to counter update
WIP make the 'value' field for counters a singned int
Remove indexes from counters
Merge branch 'rdb-kv-counter' of git://github.com/basho/riak_pb into rdb-kv-counter

Conflicts:
	src/riak_kv.proto
Fix fat fingered bad merge
Merge branch 'master' into rdb-kv-counter

Conflicts:
	src/riak_pb_codec.erl
Remove _old_ (usurped) counter message codes
Add `returnvalue` to counter pb messages
Merge branch 'master' into mmcounter

Conflicts:
	src/riak_pb_codec.erl