Pipelining now in verbose output

Pipelining is now output in verbose output, “Pipelining” is written if
it is true or non-zero in the case of longs, long values are output
after.
Select_BloomFilter now writes its PIPELINE value in getExplainer
NORMAL LevelOfDetail fix

Pipelining is no longer displayed when LevelOfDetail is NORMAL
merge JerettS: Pipelining now in verbose output

Merge pull request #1377 from JerettS/sql-layer/PipelineVerbose
https://github.com/FoundationDB/sql-layer/pull/1377