s/idCity/idMesto/

idCity only works for invoicesd, while idMesto seems to do for all.
Avoid duplicate parameters
Skip non-JSON
Avoid duplicite query form parameters
s/idCity/idMesto/

idCity only works for invoicesd, while idMesto seems to do for all.
Add a retry delay
Merge branch 'master' of github.com:soit-sk/digitalne_mesto into lr-master

Conflicts:
	scraper.pl