Added my worlds and changed things listed below

Player script changed: Now detects tags for obstacles or exits(Next
levels), then will load the level/next level according to the current
level(be sure to add to the build list!)
Prefabs: Added several prefabs
Worlds: Added two new worlds with bosses and obstacles(90% complete),
Please don't add any of your shit to my worlds without asking. I have an
art direction for each and plan to keep it that way. (Upgrading scripts
are always welcome, but don't break them)
Not sure why it's telling me to commit this again
Collision fix

Removed the ability to jump on top of objects by accident

Later we will probably have to add a tag/variable stating whether or not
the top of the enemy can be jumped on(Since a  lot of moving obstacles
use the same script, a variable might be best)
Merge remote-tracking branch 'origin/Trevor'