skins: add a bunch of tbc compatible skins

* add skin for: auction, character, game_menu
  guild_registrar, inspect, macro, mail,
  merchant, options-interface, options-sound,
  options-video, popup_dialogs, professions,
  questlog, talents, tracking, guildbank,
  socket, readycheck, arena_registrar,
  arena, time_manager, LFG
* add mail highlighting the quality of items
* add quality borders of guildbank items

skins/blizzard/lfg.lua

@@ -0,0 +1,70 @@
+pfUI:RegisterSkin("Looking for group", "tbc", function ()
+  local border = tonumber(pfUI_config.appearance.border.default)
+  local bpad = border > 1 and border - 1 or 1
+
+  CreateBackdrop(LFGParentFrame, nil, nil, .75)
+  CreateBackdropShadow(LFGParentFrame)
+
+  LFGParentFrame.backdrop:SetPoint("TOPLEFT", 14, -10)
+  LFGParentFrame.backdrop:SetPoint("BOTTOMRIGHT", -26, 72)
+  LFGParentFrame:SetHitRectInsets(14,26,10,72)
+  EnableMovable(LFGParentFrame)
+
+  SkinCloseButton(GetNoNameObject(LFGParentFrame, 'Button', nil, "UI-Panel-MinimizeButton-Up"), LFGParentFrame.backdrop, -6, -6)
+
+  LFGParentFrame:DisableDrawLayer("BACKGROUND")
+
+  LFGParentFrameTitle:ClearAllPoints()
+  LFGParentFrameTitle:SetPoint("TOP", LFGParentFrame.backdrop, "TOP", 0, -10)
+
+  SkinTab(LFGParentFrameTab1)
+  LFGParentFrameTab1:ClearAllPoints()
+  LFGParentFrameTab1:SetPoint("TOPLEFT", LFGParentFrame.backdrop, "BOTTOMLEFT", bpad, -(border + (border == 1 and 1 or 2)))
+  SkinTab(LFGParentFrameTab2)
+  LFGParentFrameTab2:ClearAllPoints()
+  LFGParentFrameTab2:SetPoint("LEFT", LFGParentFrameTab1, "RIGHT", border*2 + 1, 0)
+
+  LFGParentFrameBackground:Hide()
+
+  do -- LFGWizardFrame
+    SkinButton(LFGWizardFrameLFGButton)
+    SkinButton(LFGWizardFrameLFMButton)
+  end
+
+  do -- LFGFrame
+    StripTextures(AutoJoinBackground)
+
+    SkinCheckbox(AutoJoinCheckButton)
+
+    SkinDropDown(LFGFrameTypeDropDown1)
+    SkinDropDown(LFGFrameNameDropDown1)
+    SkinDropDown(LFGFrameTypeDropDown2)
+    SkinDropDown(LFGFrameNameDropDown2)
+    SkinDropDown(LFGFrameTypeDropDown3)
+    SkinDropDown(LFGFrameNameDropDown3)
+
+    SkinButton(LFGFrameDoneButton)
+    SkinButton(LFGFrameClearAllButton)
+    LFGFrameClearAllButton:ClearAllPoints()
+    LFGFrameClearAllButton:SetPoint("RIGHT", LFGFrameDoneButton, "LEFT", -2*bpad, 0)
+
+    CreateBackdrop(LFGComment)
+  end
+
+  do -- LFMFrame
+    StripTextures(AddMemberBackground)
+
+    SkinCheckbox(AutoAddMembersCheckButton)
+
+    SkinDropDown(LFMFrameTypeDropDown, nil, nil, nil, true)
+    SkinDropDown(LFMFrameNameDropDown, nil, nil, nil, true)
+
+    for i=1, 4 do
+      SkinButton(_G["LFMFrameColumnHeader"..i])
+    end
+
+    SkinButton(LFMFrameGroupInviteButton)
+    SkinButton(LFMFrameSendMessageButton)
+    SkinButton(LFMFrameSearchButton)
+  end
+end)