only build test thread_pool_executor_1114_test if HPX_LOCAL_SCHEDULER is set
remove references to boost::atomic in accumulator example, as its usage was replaced by hpx::components::locking_hook
remove paragraph about action codes from documentation, as it is outdated
Merge pull request #1119 from andreasbuhr/remove_atomic_references

remove references to boost::atomic in accumulator example
Merge pull request #1118 from andreasbuhr/fix_thread_pool_executor_1114_test

only build test thread_pool_executor_1114_test if HPX_LOCAL_SCHEDULER is set
Tuning of mini ghost
Increasing default limit to avoid problems with broadcasts