Add Cancel Observe logging & Fix misc. logging

Change-Id: I8e9633521459d08208847df3c9badf869948675f
Signed-off-by: Larry Sachs <larry.j.sachs@intel.com>

alexa-iotivity-bridge-demo/src/main/java/org/iotivity/base/examples/IotivityClient.java

@@ -814,9 +814,10 @@ public class IotivityClient implements
         for (OcResource ocResource : mIotivityResourceLookup.values()) {
             if (ocResource.getUri().contains(Light.OIC_URI_PREFIX_LIGHT)) {
                 try {
+                    AlexaIotivityBridgeDemo.msg("Cancelling Observe for " + ocResource.getUri());
                     ocResource.cancelObserve();
                 } catch (OcException e) {
-                    IotivityScanner.msgError("Error occurred while invoking \"cancelObserve\" API for resource "
+                    AlexaIotivityBridgeDemo.msgError("Error occurred while invoking \"cancelObserve\" API for resource "
                             + ocResource.getUri() + " -- " + e.toString());
                 }
             }

alexa-iotivity-bridge-demo/src/main/java/org/iotivity/base/examples/IotivityScannerClient.java

@@ -566,7 +566,7 @@ public class IotivityScannerClient implements
                     lightRepresentation = light.getOcRepresentation();
 
                 } catch (OcException e) {
-                    AlexaIotivityBridgeDemo.msgError("Failed to get OcRepresentation from light -- " + e.toString());
+                    IotivityScanner.msgError("Failed to get OcRepresentation from light -- " + e.toString());
                 }
 
                 if (lightRepresentation != null) {
@@ -576,7 +576,7 @@ public class IotivityScannerClient implements
                         ocResource.put(lightRepresentation, queryParams, this);
 
                     } catch (OcException e) {
-                        AlexaIotivityBridgeDemo.msgError("Error occurred while invoking \"put\" API -- " + e.toString());
+                        IotivityScanner.msgError("Error occurred while invoking \"put\" API -- " + e.toString());
                     }
                 }
             }
@@ -742,6 +742,7 @@ public class IotivityScannerClient implements
         for (OcResource ocResource : mIotivityResourceLookup.values()) {
             if (ocResource.getUri().contains(Light.OIC_URI_PREFIX_LIGHT)) {
                 try {
+                    IotivityScanner.msg("Cancelling Observe for " + ocResource.getUri());
                     ocResource.cancelObserve();
                 } catch (OcException e) {
                     IotivityScanner.msgError("Error occurred while invoking \"cancelObserve\" API for resource "