Try to workaround a bug in the chat filter

Apparently sometimes you can't use the chat at all. Emptying
ChatFilterBlocked and ChatFilterStrict seems to workaround the bug.
Upload a Babscon 2014 .pcap

Just talking to a NPC repeatedly. The interesting part is the 3D view of
the NPC, not a 2D sprite.
Update the default skills for all 3 races.

Implements part of #40
Update NPCs

Create Marvell, Flash, Taffy Treat, Midnight Breeze, Wanda Percent,
Vogue Sharp, and update Candy Floss
Fix Klondike Hicks's clothes
Add NPC Frizzy Stradlin
Add NPC Resonance
Add NPC Maplesweet
Add new NPCs

Add Sparkle Shine, Bright Spark, Starburst Nova, Thyme, Nicholas Flamel
and Star Beam
Also #ifdef out some debug log
Add Buttercup, the wearable items mare

Except no shops yet. But Soon™.
Implement Shops, minor changes

- Add a "shop" command to the QuestScript
- Add a shop to the NPC Buttercup
- Fix a bug in addInventoryItem
- New players don't get a default inventory anymore. Just 15 bits
- Shops buy and sell for free, this is intended
- Add a listNpcs server command, add the netview id in listPeers
Bump version
Allow multiple shops/room, remove some debug log
Enable 3D view of NPCs

When the 2D iconId sprite is not available, we automatically switch to
the 3D view.
If you want to use neither the 2D sprite nor the 3D view, use an iconId
that doesn't exist.
Bump version to 0.5.2
Change default sync interval : 500ms -> 300ms
Really stop if we can't read a quest

Or people will just ignore the error.
Chande default sync interval to 200ms

Not as smooth as 100ms, but it's acceptable I guess.
Server owners should use 75-150ms if they have enough bandwith.
Try to create a player DB if it's not found

Instead of shutting the server down.
Chande grouping timeout from 100ms to 25ms

Use a little more bandwith and cpu to get less latency on all reliable
messages.