MAINT: fixes #1724
MAINT: removed out-dated tutorial scripts, as well as the files as there is a link in the tutorial for download of these files
BUG: fixed bug that caused sample ids to not be respected
DOC: fixed error in documentation
REL: linked comment in changelog to github issue
Merge pull request #1791 from gregcaporaso/issue-1724

removed make_otu_heatmap_html.py