Added max results support

[stuartspotlight]

moved over to python3, make the search function return image urls and made the search function limit the number of urls returned

[stuartspotlight]

Did I do this correctly? This is the first time I've attempted to do a pull request

[rachmadaniHaryono]

imo it is better to keep the change to minimal

notes:

• keep the whitespace for now, even if it doesn't pass flake8
• keep keywords variable
• keep printJson function
• maybe do different method based on the max_results variable. if user don't give any max_inputs value, use the old method, if it is given, use the new one

see other note that i put on code