Fixes issue 1541
Fixes issue 1541

Update DR to r2686 to fix DRi#1443: fix self-interp early injected thread takeover.


SVN-Revision: 1911

sigma-random/drmemory,sigma-random/drmemory,code4bones/drmemory,LohithBlaze/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,LohithBlaze/drmemory,LohithBlaze/drmemory,sigma-random/drmemory