Merge pull request #14 from HR-Data-Geyser/develop

Merge develop into master
Merge branch 'master' of https://github.com/HR-Data-Geyser/Data-Geyser into develop
Merge branch 'develop' of https://github.com/HR-Data-Geyser/Data-Geyser into develop
add head tracking
Merge branch 'develop' of https://github.com/HR-Data-Geyser/Data-Geyser into feature/headTracking
head tracking
Merge pull request #49 from stevejs/feature/headTracking

Feature/head tracking