Commands with responses resolve early

[baffo32]

Commands that return data should not resolve until they can resolve with the return value.

• [ ] implement a generic function such as writeForEOT that writes and then waits for the next EOT string to resolve with. It will have to behave differently depending on the read state that precedes its physical write.
• [ ] rewrite existing commands to use this function

Implementing this may involve reviewing and re-evaluating the current 'state-based' approach to reading data; or it may be straightforward to include.

[andrewjaykeller]

@baffo32 any idea what we can do to merge this in? I'm looking to get 1.4.1 merged in ASAP, has a couple good bug fixes.

[baffo32]

I haven't started this yet; I don't feel I have a good enough handle yet on all the responses that can come from the board. I was really on a roll when I opened this issue, but less time has been available to me more recently.

[andrewjaykeller]

This was completed.