Update version to 1.3.9

Update version to 1.3.8

Update version to 1.3.7

Merge pull request layoutBox#78 from layoutBox/ios_deployment_target_8

Update the Podspec minimum iOS platform to 8.0

Update changelog

Update version to 1.3.4

Update version to 1.3.3

Update to version 1.3.2

Update version to 1.3.1

Update version.