METRON-705: Parallelize the build in travis to the extent that is obv…

…ious closes #444

.travis.yml

@@ -2,9 +2,14 @@ install: true
 language: java
 jdk:
   - oraclejdk8
+before_install:
+  - wget https://archive.apache.org/dist/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.zip
+  - unzip -qq apache-maven-3.3.9-bin.zip
+  - export M2_HOME=$PWD/apache-maven-3.3.9
+  - export PATH=$M2_HOME/bin:$PATH
 script:
   - |
-    mvn -q integration-test install && build_utils/verify_licenses.sh
+    time mvn -q -T 2C -DskipTests install && time mvn -q -T 2C surefire:test@unit-tests && mvn -q surefire:test@integration-tests  && time build_utils/verify_licenses.sh
 cache:
   directories:
   - $HOME/.m2

README.md

@@ -1,5 +1,5 @@
 [![Build Status](https://travis-ci.org/apache/incubator-metron.svg?branch=master)](https://travis-ci.org/apache/incubator-metron)
-
+ 
 # Apache Metron (Incubating)
 
 Metron integrates a variety of open source big data technologies in order

pom.xml

@@ -237,6 +237,8 @@
                 <configuration>
                   <excludes>
                         <exclude>dependencies_with_url.csv</exclude>
+                        <!-- In travis we need to pull down maven 3.3.9, so we should exclude it here as it is not our code. -->
+                        <exclude>apache-maven-3.3.9/**</exclude>
                         <exclude>**/*.md</exclude>
                         <exclude>**/VERSION</exclude>
                         <exclude>**/*.json</exclude>