Finished the Main Menu

Added Credits and Info windows. May want to add an actual Info string
for that window. Yay! Stuffs!
Merge remote-tracking branch 'upstream/master'
Merge pull request #86 from sercril/master

Talent and Spellbook UI Updates
fixed abilities
grabbed scenes
new fireballs
dungeon stuff, plus scene portal stuff
meta files
meta files again
asdf
Merge remote-tracking branch 'upstream/master'
fixed things navmesh triplanarbullshit,
adding main menu stuff
Merge remote-tracking branch 'upstream/master'
fixed ability prefabs
Merge remote-tracking branch 'upstream/master'
Merge pull request #89 from peachesandcorn/master

dungeon final prefabs and scene portals.
merge conflicts