References to "Range" method in Spreadsheet

[SlavaKozlov]

When executing clean_pointer() function on Spreadsheet object (in advanced.py example file), there is this error:

'Spreadsheet' object has no attribute 'Range'

on line 442:

my_range = self.Range(reference)

[bradbase]

That broke in a version of Koala after 0.0.31.

The functionality from ExcelCompiler was moved into Spreadsheet in a reasonable (and desperately needed) attempt to clean up the code. That move, however, has caused feature regression. I've tried re-implementing the broken features in the new paradigm but after a number of months and getting nowhere I decided it's too hard for me.

I need Koala and rely upon the broken features so have started a re-write. I don't yet know if this will come to anything in this project... Refer #249