Allow SysOp to select the default theme.

web/lib/html_themes.ssjs

 /* List of HTML theme packs installed */
 
 Themes=new Object;
-var CurrTheme="Default";
 
 load(system.text_dir+'html_templates/html_themes.ssjs');
+var CurrTheme=DefaultTheme;
 
 /* Read in current users selected theme if it exists */
 if(file_exists(system.data_dir+'user/'+format("%04d.html_theme",user.number)))
 	load(system.data_dir+'user/'+format("%04d.html_theme",user.number));
 
 if(Themes[CurrTheme] == undefined || Themes[CurrTheme].dir == undefined)
-	CurrTheme="Default";
+	CurrTheme=DefaultTheme;

web/templates/html_themes.ssjs

+/* Set default theme name */
+var DefaultTheme="Default";
+
 /* Edit this bit to add/remove/modify theme descriptions and dirs */
 Themes["Default"]=new Object;
 Themes["Default"].desc="Default Synchronet Theme";