update pluign.xml for usb permissions, and remove MobilePrintLib.jar
update pluign.xml for usb permissions, and remove MobilePrintLib.jar

gordol/cordova-brother-label-printer,dev-fJ-del/brother-label-printer,Ayiga/cordova-brother-label-printer,3screens/cordova-brother-label-printer,Ayiga/cordova-brother-label-printer,dev-fJ-del/brother-label-printer,gordol/cordova-brother-label-printer,3screens/cordova-brother-label-printer