Merge pull request #15 from DanielOaks/travis-moretests

Make Travis work harder, and test more things

.travis.yml

@@ -2,4 +2,4 @@ language: c
 compiler:
   - gcc
   - clang
-script: make
+script: make WITH_LUA=1 WITH_DEBUG=1 WITH_IPV6=1 WITH_WEBSOCKET=1