install  setuppy.txt requirements before python package installation

Try to fix the problem caused by pypi.python.org blocking issue,
 while run setup.py for a download package from pypi mirror.

 Please enter the commit message for your changes. Lines starting
 with '#' will be ignored, and an empty message aborts the commit.
 On branch cnnet
 Changes to be committed:
   (use "git reset HEAD <file>..." to unstage)

	modified:   playbooks/roles/edxapp/defaults/main.yml
	new file:   playbooks/roles/edxapp/files/setuppy.txt
	modified:   playbooks/roles/edxapp/meta/main.yml
	modified:   playbooks/roles/edxapp/tasks/deploy.yml
	modified:   playbooks/roles/ora/defaults/main.yml
	new file:   playbooks/roles/ora/files/ease_setuppy.txt
	modified:   playbooks/roles/ora/tasks/ease.yml
	modified:   playbooks/roles/supervisor/defaults/main.yml
	modified:   requirements.txt