Update version to 1.3.7

Author: Luc Dion

CHANGELOG.md

@@ -7,6 +7,12 @@
 
 # Change Log
 
+## [1.3.7](https://github.com/layoutBox/FlexLayout/releases/tag/1.3.7)
+Released on 2018-05-01
+
+* Upgrade to Swift 4.1
+	* Added by [Luc Dion](https://github.com/lucdion) in Pull Request [#85](https://github.com/layoutBox/FlexLayout/pull/85) 
+
 ## [1.3.6](https://github.com/layoutBox/FlexLayout/releases/tag/1.3.6)
 Released on 2018-04-16
 

FlexLayout.podspec

@@ -1,7 +1,7 @@
 
 Pod::Spec.new do |spec|
   spec.name         = "FlexLayout"
-  spec.version      = "1.3.6"
+  spec.version      = "1.3.7"
   spec.summary      = "FlexLayout"
   spec.homepage     = "https://github.com/lucdion/FlexLayout.git"
   spec.license      = "MIT license"