Can't create/recreate tables on MySQL 5.7.6+

[MegaphoneJon]

Creating tables fails on MySQL 5.7.6+ because the Files table has the field stored. stored is a reserved keyword in MySQL 5.7.6+ (see reserved keyword list). Just needs to be quoted to fix.

[MegaphoneJon]

This problem isn't so easily solved, since the Python SQL libs aren't going to escape the field name in all instances. I'll submit a separate PR that renames this field.

[MegaphoneJon]

Oops, closed the issue, meant to close the PR.