Code cleanup and method renames.

Renaming boolean get* to is*.

Renaming getSeller to getSellerName to better represent what it's actually doing.

Removing unused imports.
Remove a small internal web server feature.
Fix a startup race condition crash.
Removing unused xslt transform functions and fixing deprecation problems.
Clean up casting warning.
Pull thumbnail code up to the core class.
Use a second fallback hash for overrideable-but-discardable values, specifically in place of storing an AuctionInfo with every AuctionEntry.
Push retrieving the actual raw content to another level, and clean up uses.
Tweak #indexOf…==-1 to #contains and disable an inappropriate test.
Remove all columns that don't exist in the data model before saving.
Making the seller name/feedback information work in the new AuctionInfo-less world.
Make more generic the concept of doing * with a group of auction ids.
On startup, load all AuctionInfo objects associated with the AuctionEntry object.

This is done at this level of abstraction so that it could be 2 queries and merging the result, instead of N+1 queries.
Trying not to loop tightly on events that (eventually) trigger themselves now.