FMSLogo Code

Fix misspelling of Específicamente

Translate the documentation for the "Communication" commands to Spanish.
The translation was based on Rosario Ruiz's translation of the MSWLogo manual.

Fix typo: suportar -> soportar

Add missing <userinput> tags to the KEYBOARDOFF example

Fix Bug #512; PORTREADARRAY no longer leaks memory.

Add some more test coverage for SETITEM

Add missing curly braces

Fix Bug #513; PORTWRITEARRAY no longer leaks memory.
This adds a missing gcref() to free non-INTEGER NODE which cnv_node_to_intnode may allocate.

Remove some redundant code in lportreadarray()
This was done to make the code more readable.

Replace "char rxchar[64]" with "char rxchar", since only one byte was used.
This was done to make the code more readable.