Merge pull request #80 from embaldridge/master

Cognitive dysfunction edits.
Adding reference for Fisher 1943
Minor editorial work in Intro
Updating community and taxonomic group numbers in Intro
Removing paragraph on models being effectively equivalent from Intro

This paragraph definitely didn't belong as the last paragraph of the Intro and it's
not clear to me how to make it work in the current introduction. Since we cover it
in the Discussion my current feeling is that we just deal with it there.
Removing comment to update community/taxon numbers since this appears to have been done
Editorial work on Data section
Editorial work in Methods section
Removing old comments from Results section
Editorial changes to Results
Use standard markdown figure legends
More edits to the Results section
Make Methods consistent with Results on analysis of likelihoods
Change I's to we's and my's to our's

After checking how this was done in Ken and Xiao's dissertation it looks
like "we" should be used in the chapters that have collaborators and "I"
should be used in sections that either don't have collaborators or are
specific to the dissertation (i.e., the intro and conclusions chapters).
Edits and suggestions for Discussion

The biggest issue with the Discussion at the moment is that in two cases
4 paragraphs are used to communicate a single core idea. These need to be
paired down to 1-2 paragraphs each.
Improve and fix references

1. Simplify reference names to authorYEAR
2. Fix lots of broken references
3. Add new references
4. Remove references from end of Chapter 1 document
Merge pull request #83 from ethanwhite/ch1-edits-rnd2

Edits to, and suggestions for, Chapter 1