Fix an NPE when completing a batch after the player has logged out.
Some incremental work on refactoring wand inventories.
Fix some issues with batched fills for offline players.

This makes me realize there is an issue with WG support and batched
builds. Hrm.
Initial check-in of some web code.
Integrate jqueryUI into the web front-end.
Add a config option to disable hacky WIP wand-combining on an anvil.
Big web update, including adding icon files for a ton of materials.
Fix some PHP warnings.
Some more PHP fixes.
Re-work casting costs so the YML isn't so funky.

This is, unfortunately, a breaking change if you have a custom config.
Sorry! It should be a simple search+replace though.
Some web and lore tweaks
Changelog update.
Re-work the wand inventory system completely, support multiple inventory pages.
Fix some bugs adding new spells to wands.
Bump this release to 2.7.0
Fix casting cost parsing.
Fix a bug assigning material-based spells to a wand.