Fixes to "step navigation", etc

public_html/css/hpr.css: Commented out the 'font-size: 75%;' in the CSS
    definition for '#maincontent footer p'. It was this that shrank the
    lower "step navigation" list in comparison to the upper one. The
    upper is in a '<header>' block and the lower in a '<footer>' block.

templates/content-episode.tpl.html: Fixed a typo.

templates/content-theme.tpl.html: Changed "This can be added" to "This
    is automatically added"

templates/queries-episode-sqlite.tpl.html: Fixed a transcription error
    from the 'mysql' version

templates/shared-utils.tpl.html: Modified the layout of the
    'step_navigation' macro to remove tabs which are being copied to the
    HTML. Just a minor cosmetic issue. Added a Vim modeline to the file
    to help with this.

templates/content-episode.tpl.html

@@ -87,7 +87,7 @@ Subscribe to the comments <a href="<!--% absolute_path(baseurl) %-->comments.rss
         <tr>
             <td>Anti Spam Question:</td>
             <td>
-            What does the letter<strong>P</strong> in <em>HPR</em> stand for? <br />
+            What does the letter <strong>P</strong> in <em>HPR</em> stand for? <br />
             <input required type="text" name="anti_spam_question" size="50" maxlength="100" placeholder="Type out what the P in HPR stands for."></td>
 	</tr>
 	<!--% IF in_window %-->