fix duplicated EmployeeItems

Run a migration which removes duplicates.
Add a UNIQUE constraint on the model to prevent such duplicates.
Merge pull request #25 from futurice/fix-data

fix duplicated EmployeeItems
wsgi location change
deploy from master
make ChecklistItem.itemname markdown

This supports styling and links in the item names.
add autocomplete="off" to <form>s and prevent firefox caching
Merge pull request #26 from futurice/markdown-checklist-items

make ChecklistItem.itemname markdown
Merge pull request #27 from futurice/form-autocomplete-off

add autocomplete="off" to <form>s and prevent firefox caching
add the employee list on the index page

and fix the wsgi module path in settings.py