You're using newer version of sbt and it is pretty clear about this (you got this in output):
[warn] The global sbt directory is now versioned and is located at /home/me/.sbt/0.13.
[warn] You are seeing this warning because there is global configuration in /home/me/.sbt but not in /home/me/.sbt/0.13.
[warn] The global sbt directory may be changed via the sbt.global.base system property.
[info] Set current project to tmp (in build file:/home/me/tmp/)
The solution is to put sbt plugin info in another place (or set sbt.global.base
property, as stated above):
cat ~/.sbt/0.13/plugins/build.sbt
addSbtPlugin("com.github.mpeltonen" % "sbt-idea" % "1.5.1")