update jsch please!

[harrah]

The latest version of Jsch is 0.1.46, and you are using a version that is 2 years old at least 0.1.31

$ find . -name "*.scala" -exec grep -i jsch {} \; -print
/** sbt interface for an Ivy ssh-based repository (ssh and sftp).  Requires the Jsch library.. */
./ivy/IvyInterface.scala
    lazy val ivySub = baseProject(file("ivy"), "Ivy") dependsOn(interfaceSub, launchInterfaceSub, logSub % "compile;test->test", ioSub % "compile;test->test", launchSub % "test->test") settings(ivy, jsch, httpclient)
./project/Sbt.scala
    lazy val jsch = lib("com.jcraft" % "jsch" % "0.1.31" intransitive() )
./project/Util.scala

A lot of bugs have been fixed in cryptography in the last two years!
It took me 5 hours to work out what the problem was when I could not publish my files to my local repository. I was getting IOExceptions with a message "Algorithm negotiation fail" and this was my first time trying to publish, so it was a long and tedious path to find where the errors came from.

[harrah]

IMPORTANT This project has moved to https://github.com/sbt/sbt. This issue still exists to avoid dead links, but GitHub limitations prevent the original issue from being correctly preserved here. Please see sbt/sbt#403 for the full issue and to comment.