use only lower case for activity and purpose type attributes

[tcatapano]

Correct type attribute values (purpose and activity) to lower case. This will be assigned to students

[jwayno]

I think I've already done this, but if my files (38v-45v) are causing problems, let me know.

[ps2270]

see 39v for other probs--not displaying properly--change in xml

[jwayno]

Hmm, I see the problem, but I don't think this is a result of the xml markup. According to Oxygen, the entry is well formed, and I can't find any mistakes. I see Tiana's comment about the .md file, but I don't see how that relates. Ed is pulling from the xml files alone, correct? Also, as far as I can see, the .md file is structured the same way as other .md files, which are displaying properly.

[ps2270]

There were a few oddities in this xml file in GR8975 that I've just fixed--a long space and some misplaced code.

[jwayno]

Ah, okay. Thanks for catching those. Unfortunately, I couldn't see them in Oxygen.