Changeset b5d87e0 in OpenWorkouts-current for ow

(#29) Added a tasks module, implemented a task to run the mail queue processor,
sending any automatically generated emails in the queue.

Tasks can be run manually, with the virtual env active:

python ow/tasks/run.py development.ini TASK_NAME

(where TASK_NAME is the name of a task, like send_emails)

Running the run.py script without parameters gives an usage-like message
with instructions on how to properly call the script.