Double Jump and Dialogue Boxes

Added the ability to double jump and added a dialogue box on Olaf when
you get close to him. It uses the labelName that appears above their
head.
Merge remote-tracking branch 'origin/master'

Conflicts:
	Assembly-CSharp-vs.csproj
	Assembly-CSharp.csproj
	Assets/ThirdPersonController.cs
	JollyRoger-csharp.sln
	JollyRoger.sln