[ticket/534] No longer test unsupported PHP 5.3.3

B3P-534

.travis.yml

@@ -2,8 +2,6 @@ language: php
 
 matrix:
   include:
-    - php: 5.3.3
-      env: DB=mysqli
     - php: 5.3
       env: DB=mysqli # MyISAM
     - php: 5.4

composer.json

@@ -19,7 +19,7 @@
 			"role": "Developer"
 		}],
 	"require": {
-		"php": ">=5.3.3",
+		"php": ">=5.3.9",
 		"nickvergessen/phpbb-tool-trimmessage": "1.3.*"
 	},
 	"require-dev": {