added study offline status, hopefully won't be used too often
added study offline status, hopefully won't be used too often

RaduGatej/SensibleData-Platform,MIT-Model-Open-Data-and-Identity-System/SensibleData-Platform,MIT-Model-Open-Data-and-Identity-System/SensibleData-Platform,MIT-Model-Open-Data-and-Identity-System/SensibleData-Platform,RaduGatej/SensibleData-Platform,RaduGatej/SensibleData-Platform,RaduGatej/SensibleData-Platform