Update to Meteor 0.8.0

Update to v0.8.0 via the `meteor update` and reinstall packages by deleting smart.lock and running `mrt`
Remove main.html and appcache pacakges

This makes it easier to debug as the appcache is holding old info
Remove extra templates and rename vote to previousVote

Blaze doesn't allow a helper and a template to have the same name, so this renames the `vote` helper to `previousVote`
Merge pull request #72 from christianbundy/update-meteor-0.8.0

Update meteor 0.8.0