amend stylesheets for issue_show page
Merge branch 'master' of github.com:happypeter/offline-happycasts into amend-welcome-page-style

* 'master' of github.com:happypeter/offline-happycasts:
  now people can use whatever they want
  we can not have this on sever
Merge pull request #17 from july-12/amend-welcome-page-style

amend some stylesheets