Fixes an NPE thrown when you launch the app without a Rift plugged in.
Merge pull request #8 from AlexBenton/master

Updating keyboard control--movement is now 1m/s, and added turning.
Merge branch 'master' of https://github.com/OculusRiftInAction/OculusRiftInAction into public
Fall back to a reasonable default
Merge pull request #7 from OculusRiftInAction/public

Fixes an NPE thrown when you launch the app without a Rift plugged in.