Different ordering of output in supports nonvisual reading

[mattgarrish]

In the onix techniques, the alternative text output is a subtest:

1. IF all_necessary_content_textual:
   THEN display "Readable in read aloud or dynamic braille".
   1. IF textual_alternative_images:
      THEN display "Has alt text".

In the epub techniques, it occurs before any of the other output

1. IF textual_alternative_images:
   THEN display "Has alt text".
2. IF all_necessary_content_textual:
   THEN display "Readable in read aloud or

I'm not sure which of these is correct. It seems odd to output that there is alternative text before answering if the text is readable, but it doesn't seem right not to say there is alternative text just because the entire content can't be read aloud or read in braille.