Revert "publish to the right Bintray organization"

This reverts commit 9163011.

Now I'm not sure what's right,
e.g. http://www.scala-sbt.org/0.13/docs/Bintray-For-Plugins.html seems
to suggest using None, except I'm not sure if we're supposed to be
taking advantage of "If you’re a member of the sbt organization on
bintray" or not... we can take it up on
#14

Author: SethTisue

build.sbt

@@ -22,7 +22,7 @@ licenses          := Seq("BSD" -> url("http://opensource.org/licenses/BSD"))
 
 bintrayRepository := "sbt-plugins"
 
-bintrayOrganization := Some("typesafe")
+bintrayOrganization := None
 
 // this plugin depends on the sbt-osgi plugin -- 2-for-1!
 // TODO update to 0.8.0