Marks "location" as Maybe in GitHub responses. Without this, users could
experience an InvalidProfileResponse error when missing.
Also fixes cases where fields were Maybe, but the (.:?) combinator was
not being used in the parser.
- Alphabetize imports
- Place qualified imports separate and last
- BL for ByteString.Lazy
- Don't align tokens in tuple lists or record assignments
- Two-space indent for where keyword
- Use record syntax for Creds
- Break before operators in Applicative expressions
- Consistent whitespace throughout
Resolves#19
