1.2.0    17.01.2017
           - require c++11
           - add move constructors to panda::string, add std::hash for panda::string
1.1.6    13.01.2017
           - no visible changes
1.1.5    11.01.2017
           - added PXS_TRY macro helper for dealing with C++ exceptions (auto-rethrow perl exception)
1.1.4    03.03.2016
           - fix latest c++ warnings
1.1.3    15.07.2015
           - operator bool for panda::string
1.1.2    16.04.2015
           - make last param optional for merge and clone function (C++)
1.1.1    10.02.2015
           - docs improve, no code changes
1.1.0    05.02.2015
           - Change clone hook from CLONE to HOOK_CLONE, because CLONE is used on threaded perls at thread creation.
           - add second param $with_cross_check to 'clone' function. Add lclone method with behaves like clone($arg, 0)
           - docs/test changes
1.0.1    03.02.2015
           - bump version to require win32-friendly Panda::XS/Panda::Install
1.0.0    31.01.2015
           - fix threaded builds for NO_GET_CONTEXT
           - remove <algorithm> usage from panda::string, as it conflicts with perl headers under c++11
           - cosmetic
           - bump version to release
0.1.1    30.01.2015
           - Added public API MACRO-attributes 'INLINE' and 'THREAD_LOCAL' if not yet defined
           - Added MemoryPool, ObjectAllocator, AllocatedObject - fast memory allocators (thread-safe)
           - Fixed Win32 compilation & tests
0.1.0    31.10.2014
           - first release