Json content type log errors

jams-react-client/src/auth.js

jams-react-client/src/components/Devices/Devices.js

...ct-client/src/views/Blueprint/EditBlueprintPermissions.js

jams-react-client/src/views/Blueprints/Blueprints.js

jams-react-client/src/views/Contacts/Contacts.js

jams-react-client/src/views/Groups/EditGroup.js

jams-react-client/src/views/Groups/Groups.js

...-react-client/src/views/UserProfile/DisplayUserProfile.js

jams-react-client/src/views/Users/Users.js

...main/java/net/jami/jams/server/servlets/LoginServlet.java

...ms/server/servlets/api/jaminameserver/AddressServlet.java

.../jams/server/servlets/api/jaminameserver/NameServlet.java

...java/net/jami/jams/server/servlets/filters/ApiFilter.java

.../net/jami/jams/server/servlets/filters/InstallFilter.java

...ami/jams/server/servlets/general/ServerStatusServlet.java