[SPARK-15207][BUILD] Use Travis CI for Java/Scala/Python Linter and JDK7/8 compilation test

Author: dongjoon-hyun

.travis.yml

@@ -0,0 +1,48 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+sudo: required
+
+dist: trusty
+
+language: java
+
+jdk:
+  - oraclejdk7
+  - oraclejdk8
+
+addons:
+  apt:
+    packages:
+    - python-numpy
+    - python-sphinx
+
+cache:
+  directories:
+  - $HOME/.sbt
+  - $HOME/.m2
+
+notifications:
+  email: false
+
+install: true
+
+script:
+  - export MAVEN_SKIP_RC=1
+  - dev/check-license &&
+    dev/lint-python &&
+    dev/lint-scala &&
+    dev/lint-java &&
+    (build/mvn -DskipTests -Pyarn -Phadoop-2.3 -Pkinesis-asl -Phive -Phive-thriftserver compile | grep -v 'org/maven2/')