FMSLogo Code

Refactor networking recv to remove a copy

The main part of this change is to read data from the network directly into the "carry over buffer" instead of reading it onto a stack variable and copying it to that buffer.

It also includes a change that makes partial frames available to FMSLogo programs sooner. This makes it easier to implement an HTTP server, since HTTP clients typically don't send requests with a NUL framing byte nor do they close the socket until after they hear back from the server.

Finally, it includes a comment as to why partial frames are make available so that I don't unwittingly remove this functionality in the future (as I came close to doing in this change).

Change "haga clic" to "haz clic" in some examples.
This was done for conformance to the style guide, to use the familiar "tu" instead of the formal "usted".

Document that COMBOBOXGETTEXT and LISTBOXGETSELECT outputs lists.
This is not obvious, as their names suggest that they should output words.

Change the first sentence of BYE's description to be a fragment.
This was done for conformance to the style guide.

Document that the Description should start with a sentence fragment.

Change the first sentence in the description of HALT to a fragment.
This was done for consistency.

Add missing <parameter> markup for "template".
Without this, the sentence is grammatically incorrect (template would require an article)

Change the first sentence of the description of APPLY/INVOKE start with a verb.
This was done for conformance to the style guide.

Fix some grammatical errors

Add a link from APPLY to INVOKE.
This cross-reference would have helped me when I was trying to write a proof-of-concept example for implementing an asynchronous QUESTIONBOX.