Add travis configuration

.travis.install.yml

@@ -0,0 +1,9 @@
+set -x
+if [ "$TRAVIS_PHP_VERSION" = 'hhvm' ] || [ "$TRAVIS_PHP_VERSION" = 'hhvm-nightly' ]; then
+    curl -sS https://getcomposer.org/installer > composer-installer.php
+    hhvm composer-installer.php
+    hhvm -v ResourceLimit.SocketDefaultTimeout=30 -v Http.SlowQueryThreshold=30000 composer.phar install --prefer-source
+else
+    composer self-update
+    composer install --prefer-source
+fi

.travis.yml

@@ -0,0 +1,14 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+  - hhvm-nightly
+
+before_script:
+  - ./.travis.install.sh
+
+script:
+  - ./vendor/bin/phpunit