Bump version to 4.1.0

Update swift version in podspecs

Bump version

Bump chatto version

Removed deprecated .swift-version file

Merge pull request #477 from badoo/exposing_proprty_in_PhotoMessageCo…

…llectionViewCell

photoMessageViewModel property exposed

Merge pull request #461 from badoo/3.3.0_release

3.3.0 release

Merge pull request #382 from badoo/changelog_update

Updates CHANGELOG

Merge pull request #319 from badoo/release_3.1.0

Release 3.1.0

Release 3.0.1 (#250)

* Updates CHANGELOG

* Bumps version to 3.0.1

* Updates Podfile to use Swift 3.0.1. Runs pod update

* Configures framework projects to use Swift 3.0.1

* Uses xcode8.1sneakpeek image in travis