Fixes issue with relative path being prepended to the full (root) path; once in the tests and a second time from the city registry (line #72).
Adding url type for stations within bounding-box
Moved parsing of weather details into else block, following try/except to allow KeyErrors from weather details to bubble up properly.
Adding integration test case for fetching weather from stations by bounding box.
Adds method  for fetching weather observations from meteostations inside a bounding box of latitude/longitude coords.
Adding unit tests for the  and  methods. Converted assertions for type str to basestring.
Reverting assertion changes in favor of keeping up with lastest python version.
=Removing missed test case with basestring type check in favor of python3 and greater
=Removing missed test case with basestring type check in favor of python3 and greater
Merge pull request #63 from n0id/feature/#51_stations_in_bounding_box

Fixes issue #51