update 
1 device list multi-selection counter display, using one string resource
	now
2	device action bar now is multi-language
update

DeviceInfoFragment will disappear when enter multi-selection mode and no
device is selected; a message and icon will show instead
update 
1 fs es em Enums are now using String id 
2 Strings are added into values/string
update: when creating DeviceInfoFragment pass string id instead of
string to the adapter, it can check string id and device status to
colour value text
update: DeviceInfoFragment adapter now use ViewHolder
update deviceInfoFragment multi language
upate: toast and menu string multi-language
Merge branch 'develop'