Log Message:
-----------
Round one of changes to make doxygen generat nice docs
Modified Files:
--------------
gnucash/src/engine:
Account.h
FreqSpec.c
FreqSpec.h
Period.h
SX-book.h
SchedXaction.h
TransLog.h
Transaction.h
cap-gains.h
gnc-commodity.h
gnc-pricedb.h
qof.h