Add isInitialized property

Simplify system version recoginition code

Add additional availability check for macOS app

Fix a typo in the URL

Move to the new TelemetryDeck URL

Merge pull request TelemetryDeck#38 from jazzychad/jc/debugVsTestFlight

Differentiates DEBUG and TestFlight builds. Resolves TelemetryDeck#26

Remove Client Tester Project

Merge pull request TelemetryDeck#24 from Rubenfer/feature/payload-locale

Add locale on default payload

Add support for sessions

Show logs when Signal not sent, and when no unique user identifer cou…

…ld be created

Fix TelemetryDeck#15