Add some default booleans to Posts and Threads.

Remove timeOfDeath as I won't get to use it anytime soon.
Fix #1456.

src/General/Index.coffee

@@ -156,8 +156,8 @@ Index =
           true
 
   threadNode: ->
-    return unless data = Index.db.get {boardID: @board.ID, threadID: @ID}
-    @pin() if data.isPinned
+    return unless Index.db.get {boardID: @board.ID, threadID: @ID}
+    @pin()
   catalogNode: ->
     $.on @nodes.thumb, 'click', Index.onClick
     return if Conf['Image Hover in Catalog']
@@ -204,17 +204,16 @@ Index =
       ThreadHiding.hide thread
     ThreadHiding.saveHiddenState thread
   togglePin: (thread) ->
+    data =
+      boardID:  thread.board.ID
+      threadID: thread.ID
     if thread.isPinned
       thread.unpin()
-      Index.db.delete
-        boardID:  thread.board.ID
-        threadID: thread.ID
+      Index.db.delete data
     else
       thread.pin()
-      Index.db.set
-        boardID:  thread.board.ID
-        threadID: thread.ID
-        val: isPinned: thread.isPinned
+      data.val = true
+      Index.db.set data
     Index.sort()
     Index.buildIndex()
   setIndexMode: (mode) ->
@@ -623,7 +622,7 @@ Index =
     # Sticky threads
     Index.sortOnTop (thread) -> thread.isSticky
     # Highlighted threads
-    Index.sortOnTop (thread) -> thread.isOnTop
+    Index.sortOnTop (thread) -> thread.isOnTop or thread.isPinned
     # Non-hidden threads
     Index.sortOnTop((thread) -> !thread.isHidden) if Conf['Anchor Hidden Threads']
   sortOnTop: (match) ->

src/General/Post.coffee

@@ -52,6 +52,9 @@ class Post
     @parseQuotes()
     @parseFile that
 
+    @isDead   = false
+    @isHidden = false
+
     @clones = []
     g.posts[@fullID] = thread.posts[@] = board.posts[@] = @
     @kill() if that.isArchived
@@ -62,7 +65,6 @@ class Post
     # Get the comment's text.
     # <br> -> \n
     # Remove:
-    #   'Comment too long'...
     #   EXIF data. (/p/)
     #   Rolls. (/tg/)
     #   Preceding and following new lines.
@@ -149,17 +151,14 @@ class Post
       $.rmClass node, 'desktop'
     return
 
-  kill: (file, now) ->
-    now or= new Date()
+  kill: (file) ->
     if file
       return if @file.isDead
       @file.isDead = true
-      @file.timeOfDeath = now
       $.addClass @nodes.root, 'deleted-file'
     else
       return if @isDead
       @isDead = true
-      @timeOfDeath = now
       $.addClass @nodes.root, 'deleted-post'
 
     unless strong = $ 'strong.warning', @nodes.info
@@ -171,7 +170,7 @@ class Post
 
     return if @isClone
     for clone in @clones
-      clone.kill file, now
+      clone.kill file
 
     return if file
     # Get quotelinks/backlinks to this post
@@ -185,7 +184,6 @@ class Post
   # giving us false-positive dead posts.
   resurrect: ->
     delete @isDead
-    delete @timeOfDeath
     $.rmClass @nodes.root, 'deleted-post'
     strong = $ 'strong.warning', @nodes.info
     # no false-positive files

src/General/Thread.coffee

@@ -5,6 +5,10 @@ class Thread
   constructor: (@ID, @board) ->
     @fullID    = "#{@board}.#{@ID}"
     @posts     = {}
+    @isDead    = false
+    @isHidden  = false
+    @isOnTop   = false
+    @isPinned  = false
     @isSticky  = false
     @isClosed  = false
     @postLimit = false
@@ -52,15 +56,14 @@ class Thread
     (if type is 'Sticky' and @isClosed then $.prepend else $.add) @catalogView.nodes.icons, icon.cloneNode()
 
   pin: ->
-    @isOnTop = @isPinned = true
+    @isPinned = true
     $.addClass @catalogView.nodes.root, 'pinned' if @catalogView
   unpin: ->
-    @isOnTop = @isPinned = false
+    @isPinned = false
     $.rmClass  @catalogView.nodes.root, 'pinned' if @catalogView
 
   kill: ->
     @isDead = true
-    @timeOfDeath = Date.now()
 
   collect: ->
     for postID, post of @posts