Some webclient suggestions and practice committing to evennia.

text2html.py and webclient.css
* Remove inline formatting and place in CSS file. This frees up
  the client to change the basic color scheme without modifying
  the server file.
* Added a target="_blank" to links that are created to force a
  new tab (or window) to be opened in lieu of leaving the web
  client when a link is clicked.

webclient.html
* Added a void action to the form, just in case.

evennia_webclient.js
* Added code to move the caret to the end of the input box when
  the history is changed (up or down arrow listeners).

src/web/templates/prosimii/webclient.html

@@ -36,7 +36,7 @@
           to the local copy.</p>
         </div>
       </div>
-      <form id="inputform">
+      <form id="inputform" action="javascript:void(0);">
         <div id="playercount">Logged in Players: {{num_players_connected}}</div>
         <div id="inputcontrol"><input type="text" id="inputfield" autocomplete="off"><input id="inputsend" type="button" value="send" onClick="webclient_input()" /></div>
       </form>