added Travis configuration (#194)

Signed-off-by: Kai Kreuzer <kai@openhab.org>

.travis.yml

@@ -0,0 +1,17 @@
+sudo: required
+dist: trusty
+
+language: java
+jdk: oraclejdk8
+before_install: echo "MAVEN_OPTS='-Xms1g -Xmx2g -XX:PermSize=512m -XX:MaxPermSize=1g'" > ~/.mavenrc
+
+install:
+  - echo 'mvn clean install -B -V 1> .build.stdout 2> .build.stderr' > .build.sh
+  - chmod 0755 .build.sh
+script:
+  - travis_wait 60 ./.build.sh
+after_success:
+  - tail -n  200 .build.stdout
+after_failure:
+  - tail -n  300 .build.stderr
+  - tail -n 2000 .build.stdout