Writs Carlton

Disclaimer: I have not been able to test these updates in game as I'm on vacation for another week. Please use the comments to report anything unusual or different ideas.

New
- 50 more writ customers are now built in, with their Forever locations taken from Wowhead's Forever database. Most Basic and Intermediate writs now route and show map pins without needing a first hand-in. 95 of the 150 writs now have a customer.
- Steadier prices. The addon now remembers the lowest price of every item for a week and works out its usual price, so one cheap listing or one sale no longer swings your totals.
- Buying many of something is priced the way it really goes: the first at the lowest price, the rest at the usual price, or stack by stack when the listings are known.
- Could reach: the plan, the Favor shopping list and the writ tooltip show what the bill comes to if the cheapest listings sell before you buy, so you know the most you should pay.
- Pay up to: every line of the Favor shopping list and the reputation plan shows the most to pay for one, which is the average price of the last three days plus 10%. The writ tooltip in the Market view shows it too. /wc payup 15 changes the margin.
- Shared prices: copies of the addon on your realm now tell each other the prices they see at the Auction House, over the same guild, group and data channel as the hand-in spots. The three-day average is built from everyone's scans, one figure per player, and figures far from the rest are left out. It follows the sharing setting.
- Learns from what you pay: when your purchases of an item keep coming out above or below the estimate, later estimates for it are corrected.
- Paid so far: the Favor shopping list and the reputation plan keep a running bill of what you have really spent on them.
- Quiet refresh: when you open the Auction House, the items still to buy on your lists are looked up in the background, so the totals are current without pressing Scan. /wc autorefresh off stops it.
- Thin supply: when you need more of an item than was listed at the last full scan, the line says how many were listed and the extra is priced at the dearest price of the week.
- TradeSkillMaster prices: its market value is used as the usual price, and the addon now prices everything from TradeSkillMaster alone when Auctionator is not installed.
- The writ tooltip in the Market view shows the usual item price next to the lowest one.
- The tour keeps up with updates: when new steps are added for new features, players who already took the tour are offered just those steps. /wc tutorial new shows them, and /wc tutorial still replays everything.
- Three new tour steps: Prices you can count on, Forged Delivery Receipts, and The most to pay.

Changed
- Fewer reminders to scan again. The pop-up about old listings is gone, and the other messages now tell you what the total already counts.
- The Favor shopping list is a little wider to fit the max price.