thread excerpts are default on 4chan; add Remove Thread Excerpt

src/General/Config.coffee

@@ -277,7 +277,11 @@ Config =
       ]
       'Thread Excerpt': [
         true
-        'Show an excerpt of the thread in the tab title.'
+        'Show an excerpt of the thread in the tab title for threads in /f/.'
+      ]
+      'Remove Thread Excerpt': [
+        false
+        'Replace the excerpt of the thread in the tab title with the board title.'
       ]
       'Thread Stats': [
         true

src/Miscellaneous/Banner.coffee

@@ -7,6 +7,9 @@ Banner =
     banner = $ ".boardBanner"
     {children} = banner
 
+    if g.BOARD.ID isnt 'f' and g.VIEW is 'thread' and Conf['Remove Thread Excerpt']
+      Banner.setTitle children[1].textContent
+
     i = 0
     while child = children[i++]
       if i is 1
@@ -24,6 +27,13 @@ Banner =
 
     return
 
+  setTitle: (title) ->
+    if Unread.title?
+      Unread.title = title
+      Unread.update()
+    else
+      d.title = title
+
   cb:
     toggle: do ->
       types =

src/Monitoring/ThreadExcerpt.coffee

@@ -1,6 +1,6 @@
 ThreadExcerpt =
   init: ->
-    return if g.VIEW isnt 'thread' or !Conf['Thread Excerpt']
+    return if g.BOARD.ID isnt 'f' or g.VIEW isnt 'thread' or !Conf['Thread Excerpt']
 
     Thread.callbacks.push
       name: 'Thread Excerpt'