Spell out 'Comma' and 'Period' in keybinds.

src/Miscellaneous/Keybinds.coffee

@@ -215,9 +215,9 @@ Keybinds =
       when 40
         'Down'
       when 188
-        ','
+        'Comma'
       when 190
-        '.'
+        'Period'
       else
         if 48 <= kc <= 57 or 65 <= kc <= 90 # 0-9, A-Z
           String.fromCharCode(kc).toLowerCase()

src/Posting/Captcha.fixes.coffee

@@ -1,5 +1,5 @@
 Captcha.fixes =
-  imageKeys: '789456123uiojklm,.'.split('')
+  imageKeys: '789456123uiojklm'.split('').concat(['Comma', 'Period'])
 
   css: '''
     .rc-imageselect-target > div:focus {
@@ -79,7 +79,7 @@ Captcha.fixes =
 
   addTooltips: (nodes) ->
     for node, i in nodes
-      node.title = "#{@imageKeys[i]} or #{@imageKeys[i+9].toUpperCase()}"
+      node.title = "#{@imageKeys[i]} or #{@imageKeys[i+9][0].toUpperCase()}#{@imageKeys[i+9][1..]}"
     return
 
   checkForm: (e) ->