Add index refresh shortcut in the header bar.

Also fix lazy/lame implementation of Header.addShortcut()

src/General/Header.coffee

@@ -257,11 +257,10 @@ Header =
   addShortcut: (el, index) ->
     shortcut = $.el 'span',
       className: 'shortcut'
+    shortcut.dataset.index = index
     $.add shortcut, el
     shortcuts = $ '#shortcuts', Header.bar
-    nodes = [shortcuts.childNodes...]
-    nodes.splice index, 0, shortcut
-    $.add shortcuts, nodes
+    $.add shortcuts, [shortcuts.childNodes...].concat(shortcut).sort (a, b) -> a.dataset.index - b.dataset.index
 
   menuToggle: (e) ->
     Header.menu.toggle e, @, g

src/Images/ImageExpand.coffee

@@ -7,7 +7,7 @@ ImageExpand =
       title: 'Expand All Images'
       href: 'javascript:;'
     $.on @EAI, 'click', ImageExpand.cb.toggleAll
-    Header.addShortcut @EAI, 2
+    Header.addShortcut @EAI, 3
 
     Post.callbacks.push
       name: 'Image Expansion'

src/Miscellaneous/Index.coffee

@@ -2,6 +2,13 @@ Index =
   init: ->
     return if g.VIEW isnt 'index'
 
+    button = $.el 'a',
+      className: 'index-refresh-shortcut fa fa-refresh'
+      title: 'Refresh Index'
+      href: 'javascript:;'
+    $.on button, 'click', Index.update
+    Header.addShortcut button, 1
+
     subEntries = []
 
     subEntry =

src/Posting/QR.coffee

@@ -26,7 +26,7 @@ QR =
       $.event 'CloseMenu'
       QR.open()
       QR.nodes.com.focus()
-    Header.addShortcut sc, 1
+    Header.addShortcut sc, 2
 
     $.on d, 'QRGetSelectedPost', ({detail: cb}) ->
       cb QR.selected