[tools][transit] Handle exceptions while crawling Transitland & refactor log messages.
[tools][transit] Handle exceptions while crawling Transitland & refactor log messages.

mapsme/omim,mapsme/omim,mpimenov/omim,mpimenov/omim,mpimenov/omim,mapsme/omim,mpimenov/omim,mapsme/omim,mapsme/omim,mpimenov/omim,mapsme/omim,mpimenov/omim,mapsme/omim,mpimenov/omim,mpimenov/omim,mpimenov/omim,mapsme/omim,mapsme/omim,mpimenov/omim,mapsme/omim,mpimenov/omim,mpimenov/omim,mapsme/omim,mapsme/omim,mpimenov/omim,mapsme/omim