Merge remote-tracking branch 'zendesk/master'

Merge remote-tracking branch 'zendesk/master'

Merge pull request zendesk#497 from zendesk/fix-podspec

fix swift version quotes

Merge pull request zendesk#443 from zendesk/ksmith/version-change

Change podspec to remove s.swift_version.to_s

Merge pull request zendesk#434 from zendesk/ksmith/2.1.1

Release for 2.1.1

Merge pull request zendesk#418 from zendesk/ksmith/2.1.0

2.1.0 release

Merge pull request zendesk#409 from zendesk/reset-2.0.4

Reset 2.0.4

Merge pull request zendesk#374 from zendesk/killiansmith0/v2.0.2

Update to v2.0.2