Merge pull request #1 from fivetide/master

Item test, uninitialzed variable
Some refactor on MODS to support poe.xyz.is namings.
Some refactor on MODS to support poe.xyz.is namings.
Some refactor on MODS to support poe.xyz.is namings.
Ok, now we getting prices for exact items.
Ok, now we getting prices for exact items and for 3 most valuable mods.
Fixed bug in undercut.
Bad mistake in logic - wrong results at all.
basic UI, clipboard monitoring