ios-orientationchange-fix is unused
moment is unused
Remove add2home & shared wisdom

- add2home has not been worked on since March 20th
- shared wisdom can be loaded once the backend is ready
Merge branch 'master' of https://github.com/guardian/frontend into cleanup
Tidy up references to removed modules

Tidy up references to removed modules
Remove sharedwisdom
Merge pull request #1080 from guardian/cleanup

Cleanup