added .idea to gitignore

.gitignore

@@ -14,10 +14,13 @@ Icon?
 Thumbs.db
 *.swp
 
+# PHPStorm settings
+.idea
+
 # User themes
 themes/*
 !themes/index.html
 !themes/default/*
 
 # User config
-config.php
+config.php