Revert "use LIST_FOR_EACH_ENTRY_SAFE in DestroySurfaces"

This reverts commit 06c55fea0bcb28ed0b5f03a3b6926dd9d17a278b.
Revert "wrapper_openDriver: fix string management logic"

This reverts commit d4dc39b325540e9d1199a672255adedcda060d01.
Bump version for new release

New version 1.0.21

Change-Id: I04ba8b7e59b2a2ef4876c13f85582c029f4ca06d
Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>