- Setup: check php version (5.4 required)

- Comanche: implement conditionals. Currently the only supported tests are true/false for system config settings
and supports the following forms:

[if $config.system.foo]
[widget=widget1][/widget]
[else]
[widget=widget2][/widget]
[/if]

[if $config.system.foo]
[widget=widget1][/widget]
[/if]

Zotlabs/Module/Setup.php

@@ -407,6 +407,11 @@ class Setup extends \Zotlabs\Web\Controller {
 	function check_php(&$phpath, &$checks) {
 		$help = '';
 	
+		if(version_compare(PHP_VERSION, '5.4') < 0) {
+			$help .= t('PHP version 5.4 or greater is required.');
+			$this->check_add($checks, t('PHP version'), false, false, $help);
+		}
+
 		if (strlen($phpath)) {
 			$passed = file_exists($phpath);
 		} else {