Added clean function to remove "inventory" prefix

This also added the inventory as a specific variable at the top
Added show/hide box for potentially long part list
Added display of number of hidden part items
Added clean_path to item parents returned paths
Moved parent information to a function
Added display for query string and more information to hash's
Created static directory and moved index to it
Added serving of all resources from static directory

This also involved renaming the index function accordin to pep8 format
indexPage -> index_page
Moved all javascript to main.js
Moved css to a file in the /static directory