Merge pull request #325 from bshaffer/develop

Tag v1.3
changelog for v1.3
Merge pull request #392 from bshaffer/develop

Tag 1.4
Merge pull request #446 from bshaffer/develop

Tag v1.5
Allow any whitespace as a redirect URI delimiter

None of them are valid URI components, and line-breaks make them easier to maintain.
Merge pull request #490 from Gargaj/patch-1

Allow any whitespace as a redirect URI delimiter
Merge remote-tracking branch 'origin/master' into develop