Fix repositories page

Do not show repositories for which projects have already been created.
Give users the ability to delete owned projects
Remove obsolete import
Introduce DOCKER_URL setting
Fix kozmic.builds._run context manager
Introduce DOCKER_API_VERSION setting
Introduce ENABLE_EMAIL_NOTIFICATIONS setting
Add Dockerfile for building Kozmic CI image
Let tailer be configurable through KOZMIC_CONFIG env var
Upgrade docker-py
Change format of TAILER_URL_TEMPLATE (rename task_uuid to job_id)
Fix mistype
Polish Dockerfile
remove trailing point in github statuses

This annoys me so much! https://www.dropbox.com/s/9motouqajuuhcqk/Screenshot%202014-02-03%2017.19.59.png
Merge pull request #5 from ramm/patch-1

remove trailing point in github statuses
Fix tests
Delete GitHub hooks when deleting a project
Delete deploy key from GitHub when deleting a project
Fix test
Merge branch 'project-deletion'

Conflicts:
	tests/unit_tests.py