Add support for OAuth key / secret to Tasks Extension
Add support for OAuth key / secret to Tasks Extension

This unbreaks OAuth *again*. Note that the key and secret aren't open sourced, to protect them. Instructions for working around this are in a comment in background.html.

xingh/google-tasks-chrome-extension,gibfahn/google-tasks-chrome-extension,tiagowap/google-tasks-chrome-extension,bf4648/google-tasks-chrome-extension,tiagowap/google-tasks-chrome-extension,bf4648/google-tasks-chrome-extension,luojunqiang/google-tasks-chrome-extension,xingh/google-tasks-chrome-extension,gibfahn/google-tasks-chrome-extension,luojunqiang/google-tasks-chrome-extension