Update todo
Add filters for pay_method,reason,store in expense index
Working on import page and functionality

File is now uploading but going nowhere.
Added support for multiple flash message types
Still working on import
Working on adding file import.
Added virtual attributes to ImportHistory

Needed to hold temporary data on imported records
File import now shows import summary
Make sure duplicate records can be entered by different users
Prepare import system

Will be able to handle multiple imports at the same time.
Start with simple one at a time process import

Move existing code to _multi* for future continuation.
Move store up
Process import now updates store if available
Changed flash message construction, added :warning
Modified flash message handling

Can now add multiple messages
Added pay_method_id field to ImportConfig
Added PayMethod to ImportConfig

Required dynamic reason, pay_method for tests using mutiple calls of
get_attr_expense
Added PayMethod to ImportConfig

Required to autofill PayMethod during imports