use static_assert and SFINAE instead of gcc __attribute__ error
per-http_exchange log function customization
comment out c++abi
Merge branch 'master' of github.com:toffaletti/libten
Merge branch 'master' into task_evolution
Update README.md
Merge branch 'master' into task_evolution
Merge remote-tracking branch 'origin/task_evolution' into clang_evo

Conflicts:
	CMakeLists.txt