Added Options button to top right overview. Script object optimization by deleting server maps when not active. Fixed issue with servers getting negative money

src/engine.js

@@ -908,13 +908,17 @@ var Engine = {
             return false;
         });
         
-        //Character Overview Save button
-        var charOverviewSaveButton = document.getElementById("character-overview-save-button");
-        charOverviewSaveButton.addEventListener("click", function() {
+        //Character Overview buttons
+        document.getElementById("character-overview-save-button").addEventListener("click", function() {
             saveObject.saveGame();
             return false;
         });
         
+        document.getElementById("character-overview-options-button").addEventListener("click", function() {
+            gameOptionsBoxOpen();
+            return false;
+        });
+        
         //Script Editor Netscript documentation button
         var netscriptDocButton = document.getElementById("script-editor-netscript-doc-button");
         netscriptDocButton.addEventListener("click", function() {