Added phpunit.xml

Was still typing in the full command to run phpunit from time to time. Can
now just run unit tests by running phpunit without any config flags

.travis.yml

@@ -39,7 +39,7 @@ before_script:
   - phpenv rehash
 
 script:
-  - phpunit --stderr --colors --coverage-clover /home/travis/build/joshtronic/pickles/build/logs/clover.xml --bootstrap ./tests/bootstrap.php ./tests
+  - phpunit --configuration phpunit.xml --coverage-clover /home/travis/build/joshtronic/pickles/build/logs/clover.xml
 
 after_success:
   - php vendor/bin/coveralls --config ../.coveralls.yml -v

phpunit.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/4.2/phpunit.xsd"
+    bootstrap="tests/bootstrap.php"
+    colors="true"
+>
+    <testsuites>
+        <testsuite name="Pickles Test Suite">
+            <directory>./tests/</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>