much safer to remove only my named window scroll handler
bump userscript version
run `make`
fix bug in isItAnImage

related to array handling, amazing this even worked in the first place
renamed variables to make things clearer; t => types
ran `make push`
update readme: remove unnecessary todo, link to Tech Connect post
bump userscript version to 0.4.3
run `yo chrome-generator`, make some Gruntfile tweaks, remove tests
delete Yeoman icons, add various sized DPLA ones
update icon filenames in the manifest
slightly lengthier description
DPLA icons are .jpg, not .png
import CSS from main project
list of handy Chrome Extension references
basic message-passing between contentscript.js & background.html working
fix silly merge conflicts