+2015-03-30
+ * replaced stop/play buttons in game panel with save/load buttons
+
+2015-03-24
+ * added step-based engine snapshots to undo/redo single steps in game
+
+2015-03-19
+ * fixed (swapped) editor zoom directions for '-' and '+' (keypad) keys
+
2015-03-18
* added dynamically configurable graphics and layout of editor gadgets