Merge branch 'hotfix/2.15.13'
Added first support for API version 20 (Android L) to APL
Merge branch 'hotfix/2.15.13' of https://bitbucket.org/shouldit/android-proxy into hotfix/2.15.13
Merge remote-tracking branch 'private/hotfix/2.15.13' into hotfix/2.15.14

* private/hotfix/2.15.13:
  Added first support for API version 20 (Android L) to APL
Fixed get proxy country code
Added isValidProxyConfiguration() check to getProxy method
Added tracking to fragments and dialogs
Added preliminary check when device is into airlplane mode
 Added debug message for airplane mode
Merge branch 'master' into hotfix/2.15.14

* master:
  Added debug message for airplane mode
  Added tracking to fragments and dialogs Added preliminary check when device is into airlplane mode
Upgrade to latest version of play-services
Trying out Google Analytics as tracker for handled exception
Fixed visibility issue adding emptysection to standard_list layout
Added string for airplane mode explanation
Added Crashlytics support
Improved Crashlytics support
Merge branch 'hotfix/2.15.14' into develop