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missed dependency added, special thanks to urbanski for report this
Update vt.py

special thanks to @kellewic for report and patch for the issue when limit reached
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documented changes
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Update vt.py
Update vt.py

code optimization, block:
                  try:  
                        jdata = response.json()  
            
                  except:
                        jdata = response.json

moved to get_response, for code cleaning, and don't repead uneeded code many times, and other small changes in prints urls, now align to left, it's a bit pretty then aling th center
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documented code cleaning/optimization
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Update README.md
Merge remote-tracking branch 'upstream/master'

Conflicts:
	README.md
	vt.py