TODO tasks
==========
-Extract bug-fix commits from master since 7.2alpha6 and apply them
-to release branch: 43ef16 (version change), d92333, 4fcfce (only for
-AO_test_and_setXX in list_atomic.template plus regenerate), ced58b93.
-"release" branch should serve for the final release v7.2 candidate.
-
Add equivalent of __sync_val_compare_and_swap. Add tests.
Add C++0x ATM (atomic memory operations) layer.