Set up travis validation.

Author: adriaanm

.travis.yml

@@ -0,0 +1,13 @@
+language: scala
+script: 
+  - sbt ++$TRAVIS_SCALA_VERSION 'set concurrentRestrictions in Global += Tags.limit(Tags.Compile, 2)' compile test:compile
+  - sbt ++$TRAVIS_SCALA_VERSION 'set concurrentRestrictions in Global += Tags.limit(Tags.Test, 1)' test
+scala:
+  - 2.10.3
+  - 2.11.0-M6
+jdk:
+  - oraclejdk6
+  - openjdk7
+notifications:
+  email:
+    - adriaan.moors@typesafe.com