added presenters detail skeleton;
updates to presenter details
added presenters detail skeleton;
updates to presenter details
Merge branch 'presenters' of github.com:fzenke/jclub into presenters
added link to presenters in landing page
Merge branch 'master' into presenters
added presenter index
Merge branch 'master' into presenters
Merge branch 'master' into presenters

* master:
  back button now uses javascript history
added back button to detail presenter view
added presenter link to meeting detail
adapted presenter detail view to other meeting displays
adapted label style to the session count
added presenter link to menubar
Merge branch 'master' into presenters

* master:
  added edit links and back button glyphs; changed log in link;
adapted back button with glyph; added smaller div in index;
added col in presenter detail
Merge feature branch 'presenters'