added support (.ae "UAE") domain

re-tweak some snippet for failed requests.

Revert "re-tweak some snippet for failed requests."

re-tweak some snippet for failed requests.

changes some few dependencies

fixed a random time interval between each requests.

optimizes concurrency code snippet

implemented fake useragent library

implement fake-useragent library

added Amazon offers module

removed ',' on self.currency

added some print statement for debugging purposes

fixed some recurring errors

fixed currency format for Brazil region

fixed some recurring errors.