Improved doc string for DatabaseWindow()
Improved doc string for AddBrotherWindow()
Improved doc string for CongregationWindow()
Cleaned up whitespaces
Improved comments for the edit_congregation_window method.
Fixed a bug in line 194. zipcode was referencing state.

The value for zipcode was mirroring that of state because both were
sharing the same all_congregations[selection] index.
Improved doc string for the load_congregation_data method
Added space between docstring and code for the show_add_congregation_window method
Imorived docstring for AddCongregationWindow(), removed obvious comments, cleaned whitespace.
Fixed up the docstrings a bit and cleaned whitespaces
Closed the gap between imports
Improved formatting and removed edit_item() which is being done by modify_item()
Added note about a method that seems unused
whitespace cleanup
Closed the gap between imports
Formatted docstrings and added warning about old code that needs to be changed.
Whitespace cleanup
Fixed a small bug caused by docstrings
Merge pull request #56 from TheoDevelopers/improve-doc

Improve documentation