Adjust the timestamps provided for quanta calculation based on where clause.
Adjust the timestamps provided for quanta calculation based on where clause.

The quanta calculations are based on a default inclusive start range, exclusive
end range.  Now that the quanta calculations are correct in riak_ql commit
12118e the values being passed in need to be adjusted.
Found by ts_B_random_query_pass_eqc with counterexample {1,1,{1,d},1}.

andytill/riak_kv