Fixed Email Test so it runs and passes.  Updated email template with description last.
Added Rails Admin URL to Email
Added Talk Notification Opt-in Admin User Flag
Updated Email to use H3 instead of H1 headers
Accounting for no admins or all admins opt-out of email notifications
Updated test to include 2 opt-in admins and 1 opt-out admin
Resolves #58
Added btn class to submit buttons on talk and suggestion form.
Updated Mail Tests
Merge branch 'master' into emailnotifications

Conflicts:
	db/schema.rb
Updated Talk Controller Mail action
Merge pull request #61 from kylerippey/master

Removed local bootstrap assets in favor of CDN. Resolves #58
upgrade ruby version
Merge pull request #60 from TLynam/emailnotifications

Talk Email Notifications to Admins Issue #27