SyntaxWarning: invalid escape sequence '\d'

SyntaxWarning: invalid escape sequence '\d'
Fix: Need to change twice

From
pattern = re.compile("^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$")
To
pattern = re.compile(r"^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$")

In lines 165 and 208 of the ipwatch.py file

Thanks for your software
Manuel P
