Remove empty asset files.
Remove asset gems.
Past Talks Page
Updated oldest date to beginning of month
Moved Past Talks link location inside of Talks
Merge pull request #43 from phiggins/remove-asset-gems

Remove asset gems
Added tests for past talks
Merge pull request #47 from TLynam/past

Show past talks. Closes #29
Merge remote-tracking branch 'upstream/master' into specify-ruby-version-in-gemfile

Conflicts:
	.rvmrc