vb util
make vb to be template
bulk io
small improvement
support vb compress, waiting for server test
buffer is two small for long pos
use malloc_trim for stress test
update gold file, now file id are assigned by name string
fix dgap bug
use [] to spped up find
seems no change, refactor vb.cpp
using -O2 to compile library! test pugixml
update 64 library