Update module plugin to 2.1.2 and remove workaround

Author: lrytz

build.sh

@@ -56,8 +56,7 @@ if [[ "$TRAVIS_TAG" =~ $tagPat ]]; then
 fi
 
 # default is +publishSigned; we cross-build with travis jobs, not sbt's crossScalaVersions
-# re-define pgp files to work around https://github.com/olafurpg/sbt-ci-release/issues/64
-export CI_RELEASE="; set pgpSecretRing := pgpSecretRing.value; set pgpPublicRing := pgpPublicRing.value; publishSigned"
+export CI_RELEASE="publishSigned"
 export CI_SNAPSHOT_RELEASE="publish"
 
 # default is sonatypeBundleRelease, which closes and releases the staging repo

project/plugins.sbt

@@ -1 +1 @@
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.1")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.2")