developing gen4 niimbusio sink
further work on gen4 sink
gofmt
start on BlockHeaderArray
test block headers with random put
gofmt on block_headers
refactor to get common sql.Open at OpenSqlDB()
start gen4_inspector with --dump-index-collection
gen4_inspector: added --dump-index-file
gofmt on gen4_inspector
added GOMAXPROCS to common/server