Check for NULL timeout supplied to TableMutatorAsync
issue 1222: Fixed earliest cached revision problem in AccessGroup
Fixed bug in LoadDataSource with empty trailing fields
Added HypertableStorage for Pig
Updated for 0.9.7.19
Merge branch 'v0.9.7' of git://github.com/hypertable/hypertable into windows

Conflicts:
	src/cc/Hypertable/Lib/bmz/bmzip.c
Version updated to 0.9.7.19
boost build batch fixed