1.6.0 version bumps

Reviewed By: passy

Differential Revision: D5415450

fbshipit-source-id: cf3c42303c4a63adf114199618d42dabdb123c42

Yoga.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
   spec.name = 'Yoga'
-  spec.version = '1.5.0'
+  spec.version = '1.6.0'
   spec.license =  { :type => 'BSD', :file => "LICENSE" }
   spec.homepage = 'https://facebook.github.io/yoga/'
   spec.documentation_url = 'https://facebook.github.io/yoga/docs/api/c/'
@@ -11,7 +11,7 @@ Pod::Spec.new do |spec|
   spec.authors = 'Facebook'
   spec.source = {
     :git => 'https://github.com/facebook/yoga.git',
-    :tag => '1.5.0',
+    :tag => '1.6.0',
   }
 
   spec.module_name = 'yoga'