Add float.h. It exists even if the environment was freestanding. It has been supported since C89.
Add a new function mrb_flo_to_str(). Use it instead of sprintf() as possible.
implement literal %W %w %s
refactor string parsing
Could you add me to AUTHORS?
refactor heredoc identifier
remove disused check code
bugfix about escaping '\n'
fix the type of argument named 'aspec'.
'aspec' should be large at least 24 bit.
Merge pull request #1029 from crimsonwoods/fix_the_type_of_aspec

fix the type of argument named 'aspec'.
Merge pull request #1020 from monaka/pr-add-numeric-format-function

Add numeric format function
personal style preference on function call in flo_to_s
Merge pull request #1025 from FUKUZAWA-Tadashi/master

implement %W %w %s
remove unused local variable beg in parser_yylex