premake add enable_stable_pd option, so Bullet can be compiled without C++11 (Visual Studio 2010 etc)

PyBullet: improve sleeping: if the base is static and all joints in the chain between this link and the base are fixed, then this link is static too (doesn't merge islands)
Fix PyBullet compilation of Visual Studion 2010

build3/premake4.lua

@@ -54,6 +54,13 @@
 		description = "Try to link and use system X11 headers instead of dynamically loading X11 (dlopen is default)"
 	}
 
+	newoption
+	{
+		trigger = "enable_stable_pd",
+		description = "Enable Stable PD control in PyBullet"
+	}
+
+
 	newoption
 	{
 		trigger = "enable_static_vr_plugin",