[PATCH] Fix Potlatch imagery xml generation

[Stereo]

The 'potlatch' format currently returns only the Mapillary layer.

In JOSM.py, change:

features = []
converted = {}
        extent_obj = {}

        for feature in j["features"]:

to

features = []
        extent_obj = {}

        for feature in j["features"]:
            converted = {}

In other words, converted = {} goes into the for loop.

[stoecker]

Milestone renamed