Revert #309 to use hhvm instead of hhvm-nightly and php 7.0 instead of nightly

Author: hannesvdvreken

.travis.yml

@@ -15,8 +15,8 @@ php:
     - 5.4
     - 5.5
     - 5.6
-    - nightly
-    - hhvm-nightly
+    - 7.0
+    - hhvm
 
 matrix:
     fast_finish: true
@@ -25,7 +25,7 @@ matrix:
           env: deps="low"
 
 before_script:
-    - if [ "$TRAVIS_PHP_VERSION" != "hhvm-nightly" ]; then pecl install geoip; fi
+    - if [ "$TRAVIS_PHP_VERSION" != "hhvm" ]; then pecl install geoip; fi
     - composer self-update
     - if [ "$deps" = "low" ]; then composer update --prefer-dist --prefer-lowest; fi
     - if [ "$deps" = "" ]; then composer install --prefer-dist --no-interaction; fi