Starting to clean this up

• Started changing in new sprites, testing out some tiles for the leaves
• Made the jump mechanic smoother, no longer weirdly shudders at the apex of the jump
• Actually had the game end when you run out of lives
• Game actually finishes when you get to the top
• On that note, I added the top of the tree
• Camera stops moving when you reset to a checkpoint until you press a button, at which point it starts moving again
• Added another layer of leaves

Next goals:

• Replace the background tree with a series of hand drawn sprites
• Replace the platform branches with new sprites
• Replace birds nest and pinecone sprites
• Add basic animation to the character.