fishing for pngs 2: Update 1.3

Well,  I've spent the last month working on an awesome update for this awesome game.

Just a minor update, as per usual. (i'm kidding)

update includes:

• - Shop rework
• - item load rework
• - Reworked rod stat system
• - Added Background music (can be disabled)
• - Added auto-load option (so you won't get that popup upon starting the game)
• - added more new items
• - added some new fishing rods
• - added new recipes
• - New display monitors
• - bug fixes

this is the biggest update yet, and probably will be the biggest update ever!!!!

(also made a linux port for you weirdos out there)