zend framework 1 setup.py should contain composer dependency

Fixes https://github.com/TechEmpower/FrameworkBenchmarks/pull/874#discussion_r16033690

frameworks/PHP/php-zend-framework1/install.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-fw_depends php nginx
+fw_depends php composer nginx