Update swift 5.0 settings

Author: sonswift

Localize-Swift.podspec

@@ -32,7 +32,7 @@ Pod::Spec.new do |s|
  s.tvos.deployment_target = '9.0'
  s.watchos.deployment_target = '2.0'
 
- s.pod_target_xcconfig = { 'SWIFT_VERSION' => '4.2' }
+ s.pod_target_xcconfig = { 'SWIFT_VERSION' => '5.0' }
 
  s.requires_arc = true