Feature: importable query file

[mrbannon]

Right now the user can output the query and download in human-readable form. It would be SUPER useful to also have a serialized/importable query file. Maybe the following: both the human-readable and serialized (JSON, whatever) are in the same file. The human-readable appears at the top of the file, commented out. The JSON resides under it.

Oooooooooooor, two files...whatever.