synchronize from nokia internal Synergy depository buildtools/92, including fix to bugs 151,468,2049,1371,325,2539, etc.
VARIANT A2EXTENDS groupAVIRTUALBUILD_INCLUDE set /epoc32/include/A2/buildBUILD_INCLUDE append /epoc32/include/A2/build2ROM_INCLUDE set /epoc32/include/A2/romVARIANT_HRH /epoc32/include/e32std.h