added update code for new types of trees.
Huge Update. New working trees. Bug fixes.
More Waves
New Pictures, music, and balancing.
BugFix
Readme and Fixes
Forgot what I changed
Merge branch 'UnlockTrees' into BodieBranch

Conflicts:
	KiBoDyTheEcoHero.html
Add unlockTree()

Trees are randomly unlocked at waves 2, 4, 6, and 8.