Progress bar shouldn't give a time estimate for completion

[carlhiggs]

Its nice having a progress bar, but the current implementation for our analysis stage only tracks progress through scripts 1 to 14 and it can't really use that progress to estimate time to completion.

So currently, this looks like this:

The bit on the right ("3/14 [02:08<10:34, 57.71s/it]") is basically meaningless except for the 3/14 bit (that is, step 3/14 for analysis). Its referring to its guestimate of about 1 minute (57.71 seconds) per iteration -- but even if it were accurate, its a bit obscure. Its not accurate though, because for large cities network extraction (this particular script) will take a lot longer than that, while other scripts are practically instant (database creation).

Better would be just to have something like "Step 3/14" and hide the other stuff so it doesn't worry people

[carlhiggs]

This was addressed in #218