Reenable Travis testing

.travis.yml

@@ -0,0 +1,23 @@
+language: cpp
+compiler:
+    - gcc
+env:
+    - FX_PATH_SUFFIX=""
+    - FX_PATH_SUFFIX="-esr"
+    - FX_PATH_SUFFIX="-beta"
+#    - FX_PATH_SUFFIX="-prior-esr"
+matrix:
+    fast_finish: true
+    allow_failures:
+        - env: FX_PATH_SUFFIX="-beta"
+        - env: FX_PATH_SUFFIX="-prior-esr"
+notifications:
+    email: false
+install:
+    - wget -r -l1 -np -nd -R "index.html*" "http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/latest${FX_PATH_SUFFIX}/linux-x86_64/en-US/?F=0&P=*.tar.*"
+    - tar -xf firefox-*.tar.*
+before_script:
+    - export DISPLAY=:99.0
+    - sh -e /etc/init.d/xvfb start
+script:
+    - test/runtests.sh -x firefox/firefox