Update description of strings
Eliminate _knitr subdirectory and update figure paths
Move opts_chunk to a single call within individual files.
rename alignment hook function
Remove dynamic test files
(how did they sneak in? They shouldn't be on this branch!)
Pull out page title into an include file
Update other layouts and files to take advantage of pretitle and parent fields
Copy tutorial files into course folder
Move files to course directory and update
update teaching page
Add Spring2013 syllabus for biostats
Move spring2013 syllabus to course folder
math and formatting tests
No dice on the superscript with maruku...