07-oct-2005 NvE Support for the extended AliSignal::GetSignal (de)calibration facilities

07-oct-2005 NvE Support for the extended AliSignal::GetSignal (de)calibration facilities
                introduced in memberfunctions SortHits, GetExtremes, Displayhits and SortDevices
                of classes AliDevice and AliEvent.
                Note : For DisplayHits this new signal correction mode replaces the marker style
                       specification parameter.
                Also new memberfunction GetDevices introduced in AliEvent.
07-oct-2005 NvE Typo fixed in memberfunction SetCalibFile of IceXtalk and IceCalibrate.