Added glossary framework and OTU defs.

Still need to add other definitions.
Merge branch 'master' into issue_88
Added alpha diversity glossary.
Added beta diversity glossary.
Added ordination glossary.
Merge branch 'master' into issue_88

Conflicts:
	my_microbes/format.py
Merge branch 'master' into issue_88

Conflicts:
	my_microbes/format.py
Merge branch 'master' into issue_88
Merge pull request #94 from jrrideout/issue_88

Added glossary of technical terms.