* harbour/include/hbstack.h
* harbour/source/vm/estack.c
+ added hb_stackReleaseTSD() function - this function can be called
only in HVM cleanup state when all threads except the main one are
released
* harbour/source/rdd/dbf1.c
* harbour/source/rdd/dbffpt/dbffpt1.c
* harbour/source/rdd/dbfntx/dbfntx1.c
* harbour/source/rdd/dbfcdx/dbfcdx1.c
* make RDDINFO settings in BDF* based RDDs thread local
* harbour/include/hbclass.ch
* minor modification
e9657ea9d8