Allow user to define in setting where the comic archives are located on their filesystem.

[bpepple]

Title pretty much says it all. To implement this wouldn't be terribly hard.

• Would need to add a CharField to the Settings model to capture the users comic archive directory. (Bonus points for allowing multiple paths to be saved)

• Modifying the Issue table FileField to Charfield (and possibly not use thebuiltin name 'file', which can possibly case problems down the road if you check for the 'file' type. I'd suggest using 'path' as the column name.)

• Then it would take some minor surgery to modify any code that currently uses the file.

[hmhrex]

I believe this is a duplicate of issue #12. I'm closing this, however, these are good notes for that issue.