Use mrb_str_new_cstr
replace mrb_str_new2 by mrb_str_new_cstr
Merge pull request #7 from masahino/use_mrb_str_new_cstr

replace mrb_str_new2 by mrb_str_new_cstr
Merge branch 'master' of https://github.com/mattn/mruby-require
Fix linking
Fix build on VC
Fix dump irep
Fix mrb_raisef
Fix build
initial documentation
Merge pull request #9 from rjst/patch-1

initial documentation
Add some tips into doc
It seems that no need to escape on README.md, sucks
Ignore official gems