partial update for presentations backed by db
Merge pull request #98 from rappleg/master

Added archive row for upcoming presentations and previous lightning talk.
Code formatting.
partial update for presentations backed by db
Merge branch 'presentations' of github.com:GroovyMN/gum-website into presentations
Added crud layout.
Move presentation and speaker controllers under admin package
Added more speakers to bootstrap.
Added more speakers to bootstrap.
Added more speakers to bootstrap.
Added more speakers to bootstrap.
Added more speakers to bootstrap.
Added more speakers to bootstrap.
Allow nav links with external hrefs.
Renamed test methods to more closely match unit under test.
Upgrade to grails 2.2.4.
Upgrade to grails 2.2.4.
Increase slider interval to make it easier for the user to read all of the content before the transition.