added SyntaxError Exception
added TypeError message
added NameError message
added AttributeError message
final corrections to exceptions exercise with all four errors
merge remote-tracking branch 'upstream/master'
ack function with docstring added
if __name__ == '__main__': added to code
all tests pass for m > 3.
RuntimeError when m > 3
added Fibonacci Series using loop function
added Lucas number with looping technique
added Sum Series function with a and b operators as constants
added assert statemetns after if __name == '___main__': block
Merge pull request #21 from yonayen/master

series.py mathematical series