Add investigation of rt. Style clean up.

Lots more to do to recreate bamm plots, but it seems clear that they
were wrong, and what's actually happening is an interaction between
phase and memory class on rt (for rec and fam).
Add plot format to Rmd. Build rt models
remove old code from rmd. offload to runoff.Rmd
Merge branch 'master' of https://www.github.com/tylerboyd/LTC into pullmerge

Conflicts:
	stats/LTC_behavstats.Rmd