fix #230 Executor fails to connect with AppMaster
Merge pull request #235 from clockfly/localmode_fix3

#230 Executor fails to connect with AppMaster
fix #208 allow a app to run forever
[Doc] create code of commit submission
Delete CodeOfCommits
Create CodeOfCommit.md
Merge pull request #236 from clockfly/general_app_submission

fix #208 allow a app to run forever
Update CodeOfCommit.md