added import_from_git management command
added tests
Merge branch 'develop' of github.com:praekelt/unicore-cms-django into feature/issue-14-allow-import-git-to-db

Conflicts:
	cms/tests.py
Fix merge issues
Merge pull request #14 from praekelt/feature/issue-14-allow-import-git-to-db

update db with latest values from the git repo