Merge pull request #2 from php-http/travis-setup

we don't support php 5.4

Author: mekras

.travis.yml

@@ -7,7 +7,6 @@ cache:
     - $HOME/.composer/cache
 
 php:
-  - 5.4
   - 5.5
   - 5.6
   - 7.0
@@ -18,11 +17,9 @@ env:
     - TEST_COMMAND="phpunit"
 
 matrix:
-  allow_failures:
-    - php: 7.0
   fast_finish: true
   include:
-    - php: 5.4
+    - php: 5.5
       env:
         - COMPOSER_FLAGS="--prefer-stable --prefer-lowest"
         - COVERAGE=true