Fixed modals' background.

v.0.5.1

Merge branch 'gh-pages' into develop

Fixed ribbon url in session-modals, added webmaster tools verificatio…

…n, view-on-map bug fix, sold out tickets label, fixed schema.org speaker's image url

Merge branch 'develop'. Project Zeppelin v0.4

Merge branch 'develop'

Added waves.min.js.map