rearranging code into separate files, updated vis.js to 4.9.0

dungen.html

@@ -81,7 +81,7 @@ <h3>Import and Export</h3>
 If you need to clear all cached data in your browser for some reason, please export if you'll want to use a dungeon in DunGen again or manually save of any dungeons you care about first. 
 DunGen saves to your browser's "LocalStorage" not to a server. <b>Clearing all LocalStorage will wipe out any saved and edited dungeons.</b></p>
 
-<h3>Notes on new stuff and plans</h3>
+<h3>New features and plans</h3>
 <p> NPCs now get names, rough stats like "smart" for high INT, and "delicate" for low CON, and some have magic items (no effort for class suitability yet). Name generation is in a rough beginning state, and will improve.</p>
 <p> There is a style button now that goes to a dialog box to set up style of nodes and edges for generation and the current map. You can also style options in the individual node and edge edit dialogs.</p>
 <p> The initial version of relationships among denizens is in place. It will get better.</p>
@@ -100,6 +100,9 @@ <h3>Notes on new stuff and plans</h3>
   <script type="text/javascript" src="vis/vis.js"></script>
 
   <script type="text/javascript" src="js/dungen.js"></script>
+  <script type="text/javascript" src="js/dungen_view.js"></script>
+  <script type="text/javascript" src="js/dungen_link_strats.js"></script>
+  <script type="text/javascript" src="js/dungen_graph.js"></script>
   <script type="text/javascript" src="js/dungen_stock.js"></script>
   <script type="text/javascript" src="js/dungen_run.js"></script>
   <script type="text/javascript" src="js/dungen_ui.js"></script>