use delay slot at branchDoubleLocal and visitNotI
resubmission patch for cross platform compile with X86_64
repair compile error for compile with --enable-tests
  Provide the emitSet function interface;
  Avoid use emitCompare;
  use function that we provid to solve the label of jump short distances.
optimize emitSet associated
add config.status file
merge conflicts
Merge pull request #2 from loongsonhf/Optimization

Optimization: 20140513