renamed filter list modules to filter tree to more accurately reflect
the nature of the data structure.

also refactored much of the filter list code to be much
cleaner and modular.

enable/disable check boxes still not functional

filter builder takes filter options from user, then adds
completed filters to the filter tree. the filter tree does
not currently do anything. in the future it will filter the
cards in the database view.

When something happens, the taskbar icon lights up/the dock icon
bounces. This can be annoying, so here is a setting to disable that.

"The price tag feature currently has two bugs.
1. The final price that a card ends up with is the one in the last set
alphabetically, instead of the one from the set with the lowest price.
2. Black Lotus Project sometimes gets in prices for cards from Masters
Edition, for some reason. This set only exists in Magic the Gathering:
Online, i.e., not physically, and should not be considered. This might
be considered a BLP bug and not a Cockatrice bug.

This patch fixes those two bugs. I also changed the price value to be
based on BLP's "price" value instead of the "average" value. Seems more
logical."

Signed-off-by: Daenyth <Daenyth+git@gmail.com>

QPainter.drawRect()

Previously this behavior only occured for instants and sorceries

Woops, missed a file

Missed some parentheses

Click-holding on a card then immediately releasing now properly changes the
cursor from a closed hand back to an open hand

Specifically this should cover people connecting with a username of
"\u200C"

client: fixed crash due to evaluation of null ServerInfo_User object when watching replay while not logged on

Converted PriceUpdater from QScriptEngine to Qt-Json. I don't feel comfortable running unchecked JS code from an external source.

price is dispay in both places.