Version 2.15.1

Added

• More tests.
• CMake config: also find clang-tidy-7.

Changed

• Example and benchmark programs now don't crash with exceptions any more but report them properly.

Fixed

• Compile with NDEBUG in RelWithDebInfo mode.
• Correctly throw exception in multimap::dump_as_list().
• Integer truncation on 32 bit systems in MemoryUsage.
• Exception specification on some functions.
• Forwarding references that might have hidden copy/move constructors.