using try-except statement for date validation.

It's not easy to make sure a date is valid using just regex. e.g.
 1915-11-31 is not a valid date.
e.message --> e, + stopword: r'\.ir\b', improving parse_title algorithm
noormags.com --> noormags.ir
noormags.com --> noormags.ir

.....................................
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Ran 59 tests in 48.485s

OK
catching InvalidNameError exception