v10r17 	:	used for processing at NA and MEPHI 
v10r18	:	BUG FIXED: crash (ToF, probably also CALO and ORB) when reprocessing full file (probably any reprocessing) without extended tracks
		New methods for tracks retrieving added in CaloLevel2.h, ToFLevel2.h and OrbitalInfo.h
v10r19	:	testing purpose (ExtTrack processing only)
v10r20	:	BUG FIXED: crash due to new default in MySQL >=5.5.5, 
		The query that is failing is something like: 
		select ID_ROOT_L0, FROM_TIME, TO_TIME, EV_ROOT from GL_CALO_CALIB where SECTION=0 and VALIDATION=1 ORDER BY ABS(1322051607-FROM_TIME) asc limit 1
		this issue and it seems that is related to the "NO_UNSIGNED_SUBTRACTION" mode of MySQL.
		"As of MySQL 5.5.5, overflow during numeric expression evaluation results in
		an error. For example, the largest signed BIGINT value is
		9223372036854775807, so the following expression produces an error."
		You can find other infos about this here
		http://dev.mysql.com/doc/refman/5.5/en/server-sql-mode.html
		essentialy now, by default, subtraction between integer operands produces an
		UNSIGNED result if any operand isUNSIGNED. This is something that I think is
		weird and in the code there is not such an assumption of course, I expect
		that the subtraction between two unsigned integer COULD result in a negative number...
v10r21	:	BUG FIXED: sync lost between CAL/TOF in TrkCore when skipping events outside time window