Upgrade Scala to 2.11.6

Author: japgolly

doc/CHANGELOG-0.8.md

@@ -10,6 +10,7 @@
     * `alignSelf`
     * `alignContent`
 * Changed SetInterval to accept `FiniteDuration` instead of `Double` to avoid unit errors.
+* Upgrade Scala to 2.11.6.
 
 # 0.8.2 ([commit log](https://github.com/japgolly/scalajs-react/compare/v0.8.1...v0.8.2))
 

project/Build.scala

@@ -9,7 +9,7 @@ import ScalaJSPlugin.autoImport._
 
 object ScalajsReact extends Build {
 
-  val Scala211 = "2.11.5"
+  val Scala211 = "2.11.6"
 
   type PE = Project => Project