Path reference fixes

Replace iceRoot with nothing on location
If we have no location, it should be a nothing to start with, not a
slash
Use this.childNodes[1].id instead of made up hardcoded ref
onClick event added also, wasn't there previously?!
Deleted files show up now

Excluded array paths have slashes not pipes
Don't add deleted files to diffPaths array also, keep them seperate
Can't use a for loop to add deleted files, only adds last reference as
happens before a tickover
Instead use a setInterval as a loop, with k as the counter instead of j
to avoid confusion
Check if it's not excluded dir/file as an outer if statement, with path
fix for root
3 cases set up for adding deleted dirs/files in a sub-dir, plus folder
or file in the root
Clear the interval when finished looping