Fixes issue 1160
Fixes issue 1160

When we want to run SYS_kill to emulate a default signal action and we're
on the alt sigstack already, invoke cleanup_and_terminate() on the dstack.

Also, kstop the fcache_default timer to line the kstack up properly (else
it asserts at exit).

SVN-Revision: 2086

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