support different environments for iOS app

[fespinoza]

basically i want to have a "dev" version that does not modify my phone installed one.

i also want a "pre-release" version for when i go to testflight.

then i want a "prod" version for the stable one, all with different icons, and possibly different settings.

[fespinoza]

interesting links:

• http://limlab.io/swift/2016/02/22/xcode-working-with-multiple-environments.html
• https://medium.com/@danielgalasko/change-your-api-endpoint-environment-using-xcode-configurations-in-swift-c1ad2722200e
• http://nilsou.com/blog/2013/07/29/how-to-have-two-versions-of-the-same-app-on-your-device/

[fespinoza]

more interesting links:

• https://github.com/HazAT/badge
• https://medium.com/@danielgalasko/run-multiple-versions-of-your-app-on-the-same-device-using-xcode-configurations-1fd3a220c608
• http://nsscreencast.com/episodes/213-icon-badging-with-fastlane