Merge pull request #1 from Wallapop/fix/chatto-crash

Fix potential memory leak that's related to two firebase crashes

https://console.firebase.google.com/u/1/project/fleapster.com:wallapop/crashlytics/app/ios:com.secondhanding.WallaPop/issues/7a16d9b4e29f592cd0eab3dcfb10f86d?time=last-seven-days&types=crash&sessionEventKey=002996d938534b8394baec84dee912f0_1890512260938720781

Bump version

Bump chatto version

Removed deprecated .swift-version file

Merge pull request badoo#477 from badoo/exposing_proprty_in_PhotoMess…

…ageCollectionViewCell

photoMessageViewModel property exposed

Merge pull request badoo#461 from badoo/3.3.0_release

3.3.0 release

Merge pull request badoo#382 from badoo/changelog_update

Updates CHANGELOG

Merge pull request badoo#319 from badoo/release_3.1.0

Release 3.1.0

Release 3.0.1 (badoo#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