v0.13.0-alpha Concurrency and related fixes - #1309

This is an alpha release that concurrently resolves native promises and guarantees ordered execution of bind -> eval -> unbind operations.

Added

• Concurrent daemonised execution of bound functions. Users no longer have to manage threads in bound callbacks to prevent UI / app freezes
• The WEBVIEW_UNBIND_TIMEOUT compiler option, which sets a timeout for unbind to allow bound eval functions to complete (40ms default).

Fixed

• bind -> eval -> unbind will allow WEBVIEW_UNBIND_TIMEOUT for promise resolution instead of silently failing.
• eval will wait for bind to complete so that included bound function calls do not silently fail.
• User API instructions will queue until the DOM is ready instead of silently failing.
• JS promises are no longer left indefinitely in a waiting state if errors occur natively or bindings are unbound.

Deprecated / Removed

• The synchronous bind signature is deprecated and stubbed. Legacy user code will compile and run, but synchronous bind is a now a no-op.

Depends on PR's

• v0.12.1 reference release #1316
• v0.12.2 Refactoring and enabling work #1310
• v0.12.3 Guarantee thread safety #1311
• v0.12.4 System logging #1312
• v0.12.5 System trace logging #1313
• v0.12.6 Bugfix dead init and set html before run #1314
• v0.12.7 Enhanced JSON and resolve functionality #1315