Huge update! Took all day to implement, but it's a good one!

• Added two more tiers to Blacksmith Upgrades.
• Getting 3 Stars on a world will reward you with a Talent Point.
• Space Bar will now send the wave early, no more clicking necessary.
• Changed the saving system to reduce load on CPU. No more crashing during saves for lower-end CPUs!
• The ‘Lively’ spell has been changed to grant 100 hit points total to Max HP instead of 50% of Max HP.
• The ‘Decaying Grip’ spell now permanently decreases enemy speed when your ‘Death Reach’ spell hits.
• Endless Mode difficulty increases much faster.
• Penguins now carry more gold.
• Fixed issue where player maxes out all three trees but gets stuck in the Talent Tree because they have no place to put their point.
• Fixed issue with awkward XP increments.
• Other small, backend fixes.