cabal format

It's annoying that this adds extra whitespace and doesn't have a
trailing newline.
Colorize HLint output
Don't lint files in root directory
Fix #36; create buildAuthorizeURL

Finishing what I accidentally started in 456212.
Fix #37; create postToken
Fix #38; create postDeauthorize
Use two spaces for indentation
Move common parameters to the bottom
Remove section about executing the readme
Revert "Move common parameters to the bottom"

This reverts commit 93d4450408076f4ca42c12a15f146c7d765c42be.