Tweaking composer and travis/coveralls

.travis.yml

@@ -17,8 +17,8 @@ before_script:
   - echo "extension = mongo.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
   - mysql -e 'create database unittest;'
   - composer self-update
+  - composer require satooshi/php-coveralls:dev-master
   - composer install --dev --no-interaction
-  - composer require satooshi/php-coveralls:dev-master --dev --no-progress --prefer-source
 
 script:
   - mkdir -p build/logs

composer.json

@@ -24,6 +24,5 @@
             "Jenssegers\\Mongodb": "src/",
             "Jenssegers\\Eloquent": "src/"
         }
-    },
-    "minimum-stability": "dev"
+    }
 }