1.

If you had the following in a file called test.py:

if __name__ == "__main__":
    print "This is a test, it is only a test."
else:
    print "This is a test of: " + __name__

What would be printed if:
a. You ran the program
b. You typed "import test" into the shell

2.
Modify the function that we wrote for homework set14 (filter_dict) so that it
can also be optionally called with a third parameter.  If a third parameter is specified
the function also filters all of the values that are greater than or equal to the third
parameter.

Hint: One common practice when coming up with a good default value for a parameter is 
difficult is to have the default be None (which is a literal like True or False).

For example:
>>> my_dict = {'banana': 2, 'apple': 10, 'kiwi': 1}
>>> filter_dict(my_dict, 1)
>>> my_dict
{'banana': 2, 'apple': 10}
>>> filter_dict(my_dict, 1, 8)
>>> my_dict
{'banana': 2}