When clone repostory check if the project is owned to Netease
Fix code error T_T.
add "set -x"
change default branch to stable/folsom rather than master.
merge from master
Merge remote-tracking branch 'origin/master'
Modify it to fit out requirement

* Skip bundle test
* use Netease scm code repository
* just print script output
Use Netease mirrors to download cirros.
Add rebuild script for cleanup an devstack host.
Set origin git url to git://github.com
Stop running nova-cert service.
Add new config entry pip_index_url to a8
Support SCREEN_DEV=False

https://review.openstack.org/#/c/21721 adds support for a SCREEN_DEV mode
which starts services more robustly when in non-interactive mode.

Change-Id: I2e7d0fe9b86a90ad4dde22cf9ae2e24b10ca671c
Using `netease/folsom` to be default branch.
Using different branch in different project

* python-*client use branch name 'netease/master'.
* nova/glance/keystone/tempest.. use branch name 'netease/folsom'.