Merge pull request #1 from gr-wang/work

do merging
Merge pull request #2 from gr-wang/work

merge test by jimmy.
Merge pull request #3 from gr-wang/work

yean
commit to feature/work
i have merged source to master from feature/work.
Conflicts:
	hello_world.php
Merge pull request #5 from gr-wang/master

merge source to work from master