i#1349 drltrace tool, misc: init and exit drx
i#1349 drltrace tool, misc: init and exit drx

SVN-Revision: 2410

sigma-random/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,daksunt/dynamorio,sigma-random/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,bl4ckic3/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,daksunt/dynamorio,AmesianX/dynamorio,daksunt/dynamorio,bl4ckic3/dynamorio,bl4ckic3/dynamorio,bl4ckic3/dynamorio,sigma-random/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,code4bones/dynamorio,sigma-random/dynamorio,daksunt/dynamorio,daksunt/dynamorio,AmesianX/dynamorio