Various updates

Updated in-line with Wurm Unlimited update - 2015/12/03. (New End Game Items option.)
Updated to latest version of ago's ModLoader.
Including Patching. (use serverlauncherpatcher.bat or serverlauncherpatcher.sh instead)
Removed duplication of ModLoader files. Now uses modlauncher.jar (still provided).
Fixed Players mod null pointer error.
.bat and .sh files should now work with both local and dedicated server versions without editing.
Mod panels should resize better now.
Added missing Admin Password option.