Merge pull request #713 from jdryg/glcontext_nsgl_ctor

Set m_view to 0 in GlContext ctor

src/glcontext_nsgl.h

@@ -16,6 +16,7 @@ namespace bgfx { namespace gl
 	{
 		GlContext()
 			: m_context(0)
+			, m_view(0)
 		{
 		}