Merge pull request #74 from atungare/dev

fix so clicking Home goes to friends page instead of login (when already...
Merge pull request #75 from atungare/dev

Dev
Merge pull request #76 from atungare/dev

edit frontPage to redirect to friends if already logged in
Clear localStorage and sessionStorage and redirect to fronPage if call
to FB api's /me/friends returns an error

This happens when a user logs out of FB outside of yo-banfa then tries
to continue using yo-banfa. Their id, token, etc. will still be in
localStorage, but auth with FB won't work.
Merge pull request #77 from jlburkhead/dev

Clear localStorage and sessionStorage and redirect to fronPage if call
fix bug so id of challenged friend is correctly written to DB