CustomMonitor throws IndentationError when no arguments given

[mmckerns]

CustomMonitor throws IndentationError when no arguments given, should have better error/default behavior

also, CustomMonitor behavior for unnamed channels should be improved

[mmckerns]

>>> c = CustomMonitor()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "build/bdist.macosx-10.3-i386/egg/mystic/monitors.py", line 222, in CustomMonitor
  File "build/bdist.macosx-10.3-i386/egg/mystic/_genSow.py", line 37, in __call__
  File "<string>", line 6
    def __call__(self, **kwds):
      ^
IndentationError: expected an indented block

[mmckerns]

>>> c = CustomMonitor('x','y',x="Params")          
>>> c(1,1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: __call__() takes exactly 2 arguments (3 given)
>>> c(1)
>>> c.x
[1]
>>> c.y
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'Monitor' object has no attribute 'y'