Synchronously increment loading counter before coroutine launch to av…

…oid UI flickering in edge cases

Split off docs pipeline

Switched to Gradle convention plugin

CI fix

CI fix

Fixed compareAndSwap

Made ContextKey/ContextElement public

Unit testing API improvements

Tests and v6 API improvements (e.g. auto-retrieve `loading` from scope)

ReactiveViewModel and ContextualVal and v6 API changes