Review aJSON usage, remove if possible.

[seclorum]

We should address the aJSON dependency.

While we are currently focused on getting the mono-repo simplified, and thus need to reduce our dependencies - we nevertheless have a fork of aJSON for not-really "great"/-productive reasons .. a change of its variant of flush() to be conformant with system expectations (ignore flush return..)

We might also wish to find a better approach to handling JSON onboard.