ran devtools::document, updated all the Rd files
Switch to aes_string to satisfy CRAN

http://stackoverflow.com/questions/9439256/how-can-i-handle-r-cmd-check-
no-visible-binding-for-global-variable-notes-when
Move some redundant plotting docs to templates
Comment out more doc figures

Temporarily until roxygen2 is fixed on Windows
Re-document
Merge branch 'fix-plot-documentation'