Fix jshint errors & add buffer size warning message
Fix jshint errors & add buffer size warning message

RAMDdFLEET/cordova-plugin-chrome-apps-sockets-udp,gregvis/cordova-plugin-chrome-apps-sockets-udp,MobileChromeApps/cordova-plugin-chrome-apps-sockets-udp,MobileChromeApps/cordova-plugin-chrome-apps-sockets-udp,gregvis/cordova-plugin-chrome-apps-sockets-udp,RAMDdFLEET/cordova-plugin-chrome-apps-sockets-udp