Fix for syntax error while installation

[xrombik]

Fix for syntax error while installation (issue #1 ):

$ python setup.py build
Traceback (most recent call last):
  File "setup.py", line 7, in <module>
    from indexedproperty import __version__
  File "/mnt/sda2/My Documents/Visual Studio 2005/Projects/indexedproperty/indexedproperty/__init__.py", line 241
    def __init__(self, getter=None, name=None, doc=None, *, tdict=None, **kwargs):
                                                          ^
SyntaxError: invalid syntax