Merge pull request #1 from getaaron/master

Mega Awesome Enhancements™
Moved sfx into the sounds folder
Quieter theme
New design from Joey, still needs a bit of work
updated block assets, beautiful
Some touchups
Converted the coordinate system
Array syntax
Type conversions from UInt32 must be explicit
@IBOutlets are optional. Since our xib guarantees they're always there, unwrap them here so we don't have to in code
"@final" is now "final"
Change minimum deployment target to iOS 8 (there was a warning about certain frameworks not working below that; I didn't look into it too much)