Added travis build file

.travis.yml

@@ -0,0 +1,25 @@
+language: c++
+dist: xenial
+
+compiler:
+  - clang
+  - gcc
+
+install: 
+  - sudo apt-get update || true
+  - sudo apt-get install build-essential
+
+before_script:
+  - git clone https://github.com/ntop/n2n.git; cd n2n; ./autogen.sh; make; cd ..
+  - ./autogen.sh
+
+script:
+  - ./configure
+  - make
+
+notifications:
+  email:
+    recipients:
+      - deri@ntop.org
+    on_success: never
+    on_failure: always