Calculate the latest sbt snapshot from the directory listing.
Calculate the latest sbt snapshot from the directory listing.

sbt/sbt,mdedetrich/sbt,mdedetrich/sbt,BanzaiMan/sbt-extras,sbt/sbt,xuwei-k/xsbt,sbt/sbt,mdedetrich/sbt,xuwei-k/xsbt,sbt/sbt-launcher-package,xuwei-k/xsbt,mdedetrich/sbt,sbt/sbt,xuwei-k/xsbt,sbt/sbt,mdedetrich/sbt,yeghishe/sbt-extras,mdedetrich/sbt,mdedetrich/sbt,schleichardt/sbt-extras,sbt/sbt,sbt/sbt-launcher-package,sbt/sbt,xuwei-k/xsbt