Revert "changed travis branch."

This reverts commit a29b75b.

Author: HugoMario

.travis.yml

@@ -87,7 +87,7 @@ script:
 
 after_success:
   # push a snapshot version to maven repo
-  - if [ $SONATYPE_USERNAME ] && [ -z $TRAVIS_TAG ] && [ "$TRAVIS_BRANCH" = "release-rc1" ]; then
+  - if [ $SONATYPE_USERNAME ] && [ -z $TRAVIS_TAG ] && [ "$TRAVIS_BRANCH" = "3.0.0" ]; then
       mvn clean deploy --settings .travis/settings.xml;
       echo "Finished mvn clean deploy for $TRAVIS_BRANCH";
     fi;