Shared Saved Replies

Adds saved replies to GitHub's saved replies list when commenting on issues or pull requests.

Shared Saved Replies allows teams using GitHub to easily share and keep GitHub issue and pull request saved replies up to date. See the website for details on how to use the extension. The source code for the extension is available at https://github.com/awright18/SharedSavedReplies NOTE: The extension does use the webNagiation.onHistoryStateUpdated api which accesses the browsers history when the history changes. However, it only gets notified when a change results in accessing github.com. GitHub makes extensive use of modifying the browsers history to keep their app feeling like a native application without many page refreshes. Using the webNavigation feature is the most accurate way to tell which content is currently loaded in the browser.