v00_08

-Changed how the spiders decide when to spit webs to prevent the player from getting stuck permanently.

- Added sound effects. Not happy with all of them, let me know which you think are the best and worst so I know what to keep and what to replace.

-Updated credits to reflect sources of sound effects

-Added a Main Menu

-Added 3 new levels. Currently these are just placeholder content for testing the other new systems with, I'll be replacing them with proper levels in the future.

-Added a story.