Bump MiMa and sbt-osgi versions

Author: retronym

build.sbt

@@ -29,6 +29,6 @@ repository in bintray          := "sbt-plugins"
 bintrayOrganization in bintray := None
 
 // this plugin depends on the sbt-osgi plugin -- 2-for-1!
-addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.7.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.8.0")
 
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.6")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.8")