CocoaPods support added in 3.0.4 release is not working

[JOikarinen]

When using PolarBleSdk pod the app crashes on launch.

dyld: Symbol not found: _$s7RxSwift10ObservableCMo
  Referenced from: /private/var/containers/Bundle/Application/C4CE12D6-5A43-4D4B-8E52-59BB96F6B57E/polarBleSdkTestApp.app/Frameworks/PolarBleSdk.framework/PolarBleSdk
  Expected in: /private/var/containers/Bundle/Application/C4CE12D6-5A43-4D4B-8E52-59BB96F6B57E/polarBleSdkTestApp.app/Frameworks/RxSwift.framework/RxSwift
 in /private/var/containers/Bundle/Application/C4CE12D6-5A43-4D4B-8E52-59BB96F6B57E/polarBleSdkTestApp.app/Frameworks/PolarBleSdk.framework/PolarBleSdk
dyld: launch, loading dependent libraries

[JOikarinen]

Solution (or at least workaround), the client using PolarBleSdk pod must add this to client Podfile:

post_install do |installer|
        installer.pods_project.targets.each do |target|
          target.build_configurations.each do |config|
            config.build_settings['BUILD_LIBRARY_FOR_DISTRIBUTION'] = 'YES'
          end
        end
      end

The issue is discussed in CocoaPods/CocoaPods#9232

[JOikarinen]

Readme updated 8a6343a