preview controller and sample view data
moved student question partial into shared
moved student layout, renamed for less confusion

also added warning of preview only to preview page
add preview to evaluation list
load specific classtime eval preview
show two buttons in the first row
wrap question lists in OL
removed pipe
Added template preview

this allows previews before an eval is even created. Uses a fake class
for the evaluation preview, but with proper classType
template can now be previewed as eval
Link to template preview
preview the template dynamically on setup
change class types for template previews
Merge branch 'master' of https://github.com/ucdavis/ACE