Update dicomweb-client to 0.4.2

Packages/ohif-measurement-table/package.js

@@ -5,7 +5,7 @@ Package.describe({
 });
 
 Npm.depends({
-    'dicomweb-client': '0.3.2',
+    'dicomweb-client': '0.4.2',
     'xhr2': '0.1.4'
 });
 

Packages/ohif-studies/package.js

@@ -6,7 +6,7 @@ Package.describe({
 
 Npm.depends({
     dimse: '0.0.2',
-    'dicomweb-client': '0.3.2',
+    'dicomweb-client': '0.4.2',
     'xhr2': '0.1.4'
 });