DOC: Fix typo. Closes #1327.
Merge pull request #1330 from jseabold/fix-1327

DOC: Fix typo. Closes #1327.
BUG: Decode metadata to utf-8. Closes #1326.
Merge pull request #1329 from jseabold/fix-1326

BUG: Decode metadata to utf-8. Closes #1326.
ENH: Always use unicode.
Merge pull request #1331 from jseabold/dataset-unicode-docstrings

ENH: Always use unicode.