(#614) - moved chromeappbackground

don't forget that you need to mess around with the manifest, depending on how you're handling eval
(you can also actually use the sandbox feature of chrome apps)
(#614) - Follow up to fix linting
Merge branch 'master' of https://github.com/daleharvey/pouchdb
(#772) CORS Credentials supported added. Cookie Auth Support also added. All tests in test.http.js passing.