Add some redirect rules from the old site to the new one

[nonprofittechy]

E.g., /appeals should redirect to /ma/appeals

[samglover]

I did not address this in #100 because I wanted to think through it a bit more. If the plan (see #79) is to have /il/[topic] and /ak/[topic], I'm not sure it makes sense to redirect /[topic] to /ma/[topic]. Some options:

• /[topic] could show forms from all jurisdictions
• /[topic] could show a jurisdiction selector similar to visiting /
• Both of the above (which would probably be better for SEO)