Pick a better default for export file names

[Adam Winer]

Original issue 133 created by adam_winer on 2014-01-03T16:18:21.000Z:

Scythebill gives all exports a very generic "list.csv" name. This is weak - if the user picked a date to export "June 5, 2010", we should name it list-2010-06-05.csv. If the user generated a list for Peru, call it "list-Peru.csv". And so forth.

[Adam Winer]

Comment #1 originally posted by adam_winer on 2014-01-08T17:31:36.000Z:

See revision 795