0.2.2
add -no-undefined to src/Makefile.am
yaml_stack_extend: guard against integer overflow
fix C++-compat error
fix C++ g++-6 errors
Fixed most compiler warnings -Wall -Wextra
Fix unconditional yaml_free()
Remove need for PTRDIFF_MAX
fix clang -Wlogical-op warnings
Removed trailing-whitespaces
build: do not install config.h