Merge pull request #664 from ebensing/pres

Added link to presentation editor on coll page
Added link to presentation editor on coll page

linked to the heroku version, will need to transition that to a AWS
hosted copy at some point.
check to see if logged in before displaying view pres
Merge pull request #665 from ebensing/pres

check to see if logged in before displaying view pres
added view & edit presentation links
Merge pull request #666 from ebensing/pres

added view & edit presentation links