Until now, standalone was running slapos node software/instance with --all flag which force installing software or processing software, unlike "normal" slapos node which no longer install on software once they are completed and only process instances when they are requested with different parameters or when they have failing promises.

We stop using the --all flag, to behave like a normal slapos node.

This reveal missing promises in some softwares, after this change, waitForInstance can return faster. This reveal test failures with some softwares where the instanciation step request other instances, but without having a promise to wait for their requests to have been sucessfully processed; in this case waitForInstance return too early.

We keep an "slapos node software --all" API to force reinstalling software, this can be useful for scenarios like erp5testnode, or software release development.

We also keep an hidden "slapos node instance --all" API, so that we can keep running tests for software releases with missing promises.