Merge pull request #18 from geekwright/php55

Update PHP requirement to 5.5 minimum

Author: geekwright

composer.json

@@ -4,7 +4,7 @@
     "type": "project",
     "description": "Primary dependencies for XOOPS/XoopsCore",
     "require": {
-        "php": ">5.4.0",
+        "php": ">5.5.0",
         "ext-PDO": "*",
         "ext-session": "*",
         "ext-pcre": "*",
@@ -19,8 +19,8 @@
         "symfony/console": "~2.4",
         "ptachoire/cssembed": "1.0.*",
         "lmammino/jsmin4assetic": "1.0.*",
-        "leafo/lessphp": "0.5.*",
-        "leafo/scssphp": "0.3.*",
+        "oyejorge/less.php": "~1.7.0.9",
+        "leafo/scssphp": "0.6.*",
         "natxet/CssMin": "3.0.*",
         "patchwork/jsqueeze": "2.0.3",
         "oodle/krumo": "0.5.*",