also allow spaces around quit/exit.

Add ISO No. to Integer#divmod  test.

Another change to fix issue #2244

Replace from include <>, to include "".

Remove unnecessary newline in `OP_GETGLOBAL` codedump.

test fixnum overflow for add, sub and mul

Fix ISO No.

Rebuild no mrb_open mrbgems test when config file is modified.

Fix Hash test

Add scr_e, to not reassign to e.

Disable C++ exception for chipKIT Max32 example build_config