[nim] Adding assumption about the header row
[nim] Switching to reading csv using ordinary reader an not DictReader. Getting rid of no longer useful methods
[nim] Removing unnecessary second activation of virtualenv
[nim] Cleaning up white space
[nim] removing unneccessary method
[nim] Explaining a bug with conflicts in level naming
When searching for the parent of a cell, only query the relevant level in the locations table to avoid Location.objects.get() conflicts
[nim] Bug demo version of the locations file