Update Onboard.podspec

Merge pull request mamaral#54 from mamaral/bug-52

Bug 52

Update Onboard.podspec

Updated version number in podspec.

Updating version referenced in podspec.

Merge branch 'master' of https://github.com/mamaral/Onboard

Merge pull request mamaral#19 from mamaral/video-background

Video background

Working on the podfile.

Updated podspec.