Errors in Goal.lua due to namespaced gossip functions, with fix

[dakhran]

For version 7.0.23569 and prior, in Goal.lua:871-884, it appears that this code is still using deprecated and removed global functions such as GetNumGossipAvailableQuests(), all which have been moved into the namespace C_GossipInfo. Furthermore, these functions no longer return arrays, which breaks the code even further.

In my copy, I have modified the code to the following, which seems to work fine.

if GossipFrame:IsShown() then
	local noquests=true
	local qdata = C_GossipInfo.GetAvailableQuests()
	for qnum=1,C_GossipInfo.GetNumAvailableQuests() do
		if qdata[qnum].frequency==Enum.QuestFrequency.Daily then noquests=nil break end  -- one daily breaks it
	end
	local qdata = C_GossipInfo.GetActiveQuests()
	for qnum=1,C_GossipInfo.GetNumActiveQuests() do
		if qdata[qnum].isComplete then noquests=nil break end  -- one complete breaks it
	end
	if noquests then CloseGossip() end
	return noquests, true