Updated readme, misc fixes

* Look for spark config in parent directories
* Version tracking via src/version

src/Environment/Environment.php

@@ -125,9 +125,22 @@ class Environment
         SparkApplication::$instance->getPluginManager()->initializePlugins();
     }
 
-    public static function createFromDirectory(string|null $directory=null): Environment
+    public static function createFromDirectory(string|null $directory=null, bool $parents=false): Environment
     {
         $directory = $directory ?? getcwd();
+        
+        if ($parents) {
+            $check = $directory;
+            while (!glob("{$check}/.spark*")) {
+                $p = dirname($check);
+                if ($p == $check) break;
+                $check = $p;
+            }
+            if (strlen($directory) > 1) {
+                $directory = $check;
+            }
+        }
+
         $candidates = [ $directory . "/.spark.json", $directory . "/.spark/spark.json" ];
         $config = [];
         while ($candidate = array_shift($candidates)) {