Minor changes

build.sbt

@@ -62,7 +62,7 @@ lazy val akka = (project in file("macroid-akka"))
     unmanagedClasspath in Test ++= (bootClasspath in Android).value,
     homepage := Some(
       url("http://47deg.github.io/macroid/docs/modules/Akka.html")),
-    libraryDependencies += "com.typesafe.akka" %% "akka-actor" % "2.3.16"
+    libraryDependencies += "com.typesafe.akka" %% "akka-actor" % "2.5.4"
   )
   .dependsOn(core)
 

macroid-docs/src/main/tut/index.md

@@ -13,7 +13,7 @@ Scala macros.
 
 Striving to be focused on one thing (GUI), Macroid promotes composability and high-level abstractions.
 
-Prerequisites: Scala `2.10.x` or `2.11.x`, Android `API 9+`.
+Prerequisites: Scala `2.10.x` or `2.11.x`, Android `API 19+`.
 
 [![Join the chat at https://gitter.im/macroid/macroid](https://img.shields.io/badge/GITTER-Join%20chat%20→-brightgreen.svg?style=flat)](https://gitter.im/47deg/macroid?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 

project/plugins.sbt

@@ -1,4 +1,4 @@
-addSbtPlugin("org.scala-android" % "sbt-android" % "1.7.8")
+addSbtPlugin("org.scala-android" % "sbt-android" % "1.7.10")
 
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.5.0")