Merge pull request #890 from edx/cg/compile_exclude

If you have a branch name with .py in it, compileall will fail with bad syntax

playbooks/roles/edxapp/tasks/deploy.yml

@@ -253,7 +253,7 @@
   - edxapp-sandbox
 
 - name: compiling all py files in the edx-platform repo
-  shell: "{{ edxapp_venv_bin }}/python -m compileall {{ edxapp_code_dir }}"
+  shell: "{{ edxapp_venv_bin }}/python -m compileall -x .git/.* {{ edxapp_code_dir }}"
   sudo_user: "{{ edxapp_user }}"
   notify:
   - "restart edxapp"