sources: rename to jami

* rename namespace from ring to jami
* rename logs methods from RING_* to JAMI_*
* rename RING_VIDEO to ENABLE_VIDEO

Change-Id: Ic98498652d7059fafe58a96220d565bcdfa53658
diff --git a/src/media/video/osxvideo/video_device_impl.mm b/src/media/video/osxvideo/video_device_impl.mm
index 110c1ad..0f4d4d2 100644
--- a/src/media/video/osxvideo/video_device_impl.mm
+++ b/src/media/video/osxvideo/video_device_impl.mm
@@ -33,7 +33,7 @@
 
 #import <AVFoundation/AVFoundation.h>
 
-namespace ring { namespace video {
+namespace jami { namespace video {
 
 class VideoDeviceImpl {
     public:
@@ -191,4 +191,4 @@
 VideoDevice::~VideoDevice()
 {}
 
-}} // namespace ring::video
+}} // namespace jami::video