First step, the derivative creator sizes
Dynamic picture wasn't used anywhere, remnants of a Steven design never implemented. Removed
Removing size that was never used
Ammending names and sizes for full picture partial
Removing unused 1-2x
Fixing up the css to match the new sizes
Minor fix
Accomadate for max-width, padding and border
Back..
Cleaning up cropping so as to not affect img4 or img5
Minor css
closes #415, closes #390, closes #338
Merge pull request #479 from NEU-Libraries/feature/thumbnail_refactor

Feature/thumbnail refactor