Added a schedule tab to AddCongregationWindow.
Changed the tab order.
Compiled the AddCongregationWindow
Updated the sch. tab.
Updated sch. tab.
Changed the tab order.
Added week & time to the database schema.

The 'week' and 'time' fields were placed into the database schema in order to keep track of each congregation's meeting schedule.
Removed frame styles. Close #65
Added 'week' and 'time' to the columns variable. Close #64
Added 'week' and 'time' to set_attribues().
Refactored variable zip to zipcode.

Had to refactor the variable zip to zipcode because there is a built in function called zip().
Added 'week' and 'time' to add_congregation().
Added 'week' and 'time' to edit_congregation().
Added 'week' and 'time' to __check_required_fields().
Added 'week' and 'time' to zero_out().
Moved EditCongregationDialog()

Moved the EditCongregationDialog class to the end of the source file, underneath the AddCongregation class.
Added docstring to populate_table().

Also removed the comment "Populate the congregation table".
Added space between methods.
Updated docstring for add_congregation class.

The name of a method changed. This edit fixes the change of name and also reformats the docstring.
Fixed an error in the docstring.

Didn't change the name of the renamed method entirely. Took care of that now.