initial commit
update README.md
Update README.md
add Kernel#open
Kernel#open block support
add File.expand_path
put MRB_ prefix before ARGS_XXX macros
update run_test.rb
rename mrb_class_obj_get -> mrb_class_get
add IO#print
add $stdin $stdout $stderr STDIN STDOUT STDERR
update run_test.rb
Use mkstemp instead of mktemp.
Use strncpy instead of strcpy.
remove unused variable.
add null check
add return value check of fseek
update run_test.rb
bufix of mrb_file__gethome()
fix IO#eof? method (consider the read buffer)