Revert "Removed contextMenu links and js file. Removed github ribbons. Restructured index.js and added resetSettingsPanel for when a paper is deleted so that the user can't submit changes for a paper that no longer exists. Removed excess updatePapers call when deleting a paper."

This reverts commit 4b87747bb37e7a0bc4023e7ed8d100150cad7e7a.
pushing changes from last commit