Fix error in requirements.txt

PyTZ now requires you to specifically state which timezone values you would like to use.
Add Dockerfile

This patch creates a Dockerfile which allows you to run the bot unmodified inside of a Docker container. It expects logs to be stored in /logs and exposes this as a volume.
Merge pull request #2 from keeb/fix-requirements

Fix error in requirements.txt
Merge pull request #3 from keeb/add-dockerfile

Add Dockerfile
add the option to have a different archive name.
Add MAINTAINERS file

Make this project consistent with all other dotCloud projects.
Merge pull request #4 from keeb/fix-archives

Fix hardcoded logfile name
Merge pull request #5 from keeb/add-maintainers

Add MAINTAINERS file
Merged from dotcloud:master

Made sure to rebase..