API port from master & bump to 1.4.0 (#87)
* API port from master & bump to 1.4.0 * `ExecuteAsyncResult` NamedTuple * Non-blocking execute * CI optimizations: static part before tests * Partial code-style port for easier backports later
* API port from master & bump to 1.4.0 * `ExecuteAsyncResult` NamedTuple * Non-blocking execute * CI optimizations: static part before tests * Partial code-style port for easier backports later