Simplified URL routing to one file.
Updated base and home templates.
Added list view and template for all flags.
Updated flag model and applied schema migration.
Added view and template to display all flags.
Changed nav bar to black.
Updated home, list, and about templates.
Created views, URLs, and templates to break down flags by OS.
Added info view and template (with disclaimer).
Added custom OS labels and made some CSS adjustments.
Added info link to hero box on home page.
Added OS labels to full list page and updated base template.
Merge pull request #2 from peterfschaadt/routing

Added list and info views/templates, added OS labels, changed URL routing, and updated CSS design.