No longer need specific version of maven in travis

Author: garethf

.travis.yml

@@ -3,12 +3,4 @@ jdk:
   - oraclejdk7
   - openjdk6
   - openjdk7
-  
-  
-env: 
-  global: 
-    - MAVEN_URL=http://apache.mirrors.pair.com/maven/maven-3/3.0.5/binaries/apache-maven-3.0.5-bin.tar.gz 
-install:
-  - wget -O - $MAVEN_URL | sudo tar xvz -C /usr/local 
-  - sudo rm /usr/local/maven
-  - sudo ln -s /usr/local/apache-maven-3.0.5 /usr/local/maven
+