+ - SegmentedQueue: add padding into segmented_queue::traits to eliminate false sharing.
+ - Changed: guarded_ptr and exempt_ptr have move semantics now. The container's extract() and get()
+ member functions return the objects of that type.
+ - Changed: improved cds::gc::HP and cds::gc::DHP internal implementation
+ - Changed: map member function insert_key() has been renamed to insert_with()
+ - Changed: cds/cxx11_atomic.h has been renamed to cds/algo/atomic.h
+ - Removed: cds/refcounter.h