Change names in Namespaces

src/Conecto/Views/MainSettingsView.vala

src/Conecto/Widgets/DeviceListActionBarFooter.vala

src/Conecto/Widgets/DeviceListBox.vala

src/Conecto/Widgets/DeviceListBoxRow.vala

src/Conecto/Widgets/DeviceMenuitem.vala

src/Conecto/Widgets/PluginListBox.vala

src/Conecto/Widgets/PluginListBoxRow.vala

src/MConnect/BatteryHandler.vala

src/MConnect/Device.vala

src/MConnect/DeviceManager.vala

src/MConnect/DownloadTransfer.vala

src/MConnect/NotificationHandler.vala

src/MConnect/ShareHandler.vala

src/MConnect/ShareHandlerProxy.vala

src/MConnect/TelephonyHandler.vala

src/MConnect/UploadTransfer.vala