Changes for version 0.31
- CAVEATS in POD is added to explain which Unicode version of normalization is supported by this module.
- Some test cases from Unicode Public Review Issue #29 (Normalization Issue) are added to norm.t and test.t.
- do 'mkheader' returns true so that Makefile.PL will catch error.
- added META.yml.
- Unicode::Normalize - Unicode Normalization Forms