Removes unnecessary test cases for maps
issue #76: added cds::atomicity::cache_friendly_item_counter to avoid false sharing issue #76: MichaelHashSet/Map: removed static_assert for empty_item_counter
Removed signal_threaded uRCU
Removed signal-handled RCU from daily stress-testing
Stress tests: removed command line parameter --detail-level and envvar CDSTEST_DETAIL_LEVEL for reducing compile time and executable size. To make full testset compile libcds with -DCDS_STRESS_TEST_LEVEL=N
Fixed bug in BronsonAVLTreeMap::extract_min()/extract_max()/clear() Added map-minmax stress test
BronsonAVLTreeMap: fixed extract_min/max functions
Updated copyright
Fixed key size in map-delodd stress test Added more constraint for BronsonAVLTree stress tests
Removed trailing spaces
Migrated map-delodd stress test to gtest