Adding linux support for the Dualshock 4
Project updates.
Merge branch 'develop' of git://github.com/rje/InControl into rje-develop

Conflicts:
	Assembly-CSharp-Editor-vs.csproj
	Assembly-CSharp-Editor.csproj
	Assembly-CSharp-vs.csproj
	Assembly-CSharp.csproj
	InControl-csharp.sln
	InControl.sln
	ProjectSettings/Physics2DSettings.asset
Support for PS4 controller on Linux (issue #33)
Mad Catz support on Mac (issue #28)
Increased number of analogs to 20 (issue #29)

Unity3D bumped this value in version 4.3.3