Merge pull request php-curl-class#190 from zachborboa/master

Fix php-curl-class#188: Add PHP nightly builds to continuous integration tests

Author: zachborboa

.travis.yml

@@ -6,10 +6,12 @@ php:
   - 5.5
   - 5.6
   - hhvm
+  - nightly
 
 matrix:
   allow_failures:
     - php: hhvm
+    - php: nightly
 
 before_script:
   - bash tests/before_script.sh