compile using sbt 0.13.11, scala 2.11

circle.yml

@@ -0,0 +1,16 @@
+machine:
+  environment:
+    SBT_VERSION: 0.13.11
+    SBT_OPTS: "-Xms512M -Xmx1536M -Xss1M -XX:+CMSClassUnloadingEnabled
+-XX:MaxPermSize=256M"
+dependencies:
+  cache_directories:
+    - "~/.sbt"
+  pre:
+    - wget --output-document=$HOME/bin/sbt-launch.jar
+      https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/"$SBT_VERSION"/sbt-launch.jar
+    - echo "java $SBT_OPTS -jar \`dirname \$0\`/sbt-launch.jar \"\$@\""
+      > $HOME/bin/sbt
+    - chmod u+x $HOME/bin/sbt
+    - which sbt
+    - sbt sbt-version

pom.xml

@@ -10,9 +10,9 @@
 
   <properties>
     <java.version>1.7</java.version>
-    <scala.version>2.10.4</scala.version>
-    <scala.version.prefix>2.10</scala.version.prefix>
-    <spark.version>1.5.0</spark.version>
+    <scala.version>2.11.8</scala.version>
+    <scala.version.prefix>2.11</scala.version.prefix>
+    <spark.version>1.6.1</spark.version>
     <maven.release.plugin.version>2.4.1</maven.release.plugin.version>
   </properties>
 
@@ -49,8 +49,8 @@
 	</dependency>
 	<dependency>
 	  <groupId>org.apache.spark</groupId>
-	  <artifactId>spark-streaming_2.10</artifactId>
-	  <version>1.5.1</version>
+	  <artifactId>spark-streaming_${scala.version.prefix}</artifactId>
+	  <version>${spark.version}</version>
 	</dependency>
   </dependencies>
 
@@ -102,7 +102,7 @@
       <plugin>
         <groupId>net.alchim31.maven</groupId>
         <artifactId>scala-maven-plugin</artifactId>
-        <version>3.1.5</version>
+        <version>3.2.2</version>
         <executions>
           <execution>
             <id>scala-compile-first</id>

project/build.properties

@@ -0,0 +1 @@
+sbt.version = 0.13.11