Added .travis.yml file.

Author: LewisW

.travis.yml

@@ -0,0 +1,41 @@
+language: php
+sudo: false
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - hhvm
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: hhvm
+    - php: 7.0
+
+before_install:
+  - composer selfupdate
+
+addons:
+  apt:
+    packages:
+    - parallel
+
+install:
+  - export COMPOSER_ROOT_VERSION=dev-master
+  - if [ "$DEPENDENCIES" == "dev" ]; then perl -pi -e 's/^}$/,"minimum-stability":"dev"}/' composer.json; fi;
+  - if [ "$DEPENDENCIES" != "low" ]; then composer update; fi;
+  - if [ "$DEPENDENCIES" == "low" ]; then composer update --prefer-lowest; fi;
+
+before_script:
+  - echo "<?php if (PHP_VERSION_ID >= 50400) echo ',@php5.4';" > php_version_tags.php
+
+script:
+   - bin/phpspec run --format=pretty
+   #- ./vendor/bin/phpunit --testdox
+   #- ./vendor/bin/behat --format=pretty --tags '~@php-version'`php php_version_tags.php`