iOS cleanup needed

[brody4hire]

• fix TODO comments (I think they should be marked @TODO)
• fix spacing, alignment, and wrapping of some other comments
• replace some tab characters with spaces
• more consistent spacing in if and maybe some other statements
• some LOC are way too long and should be split up with proper indenting
• consistent indentation (seems to be mostly 2 spaces, seems to be some 4-space indentation)
• remove trailing whitespace