Quick and Easy Performance Kicker

[Jim Starkey]

EncodedDataString has a class member of type BigInt.  The default BigInt 
constructor calls clear to set the BigInt to a nice, pristine, all zeros 
state, which is completely unecessary.  BigInt default to uninitialized, 
just like other values.

BigInt::clear() was showing up at 5% of Nimbus load cycles, even though 
BigInt was never used.

A really easy performance kicker.

-- 
Jim Starkey
President, NimbusDB, Inc.
978 526-1376