fix headings, content, and code style on enterprise page
don’t get too personal; preserve heading case
remove extra wrapper elements from enterprise form
put content in a centered column
remove unused enterprise styles
clean up the second page of enterprise signup
clean up enterprise page 3
clean up more enterprise pages
Adding a basic single-column style for static pages, which makes the jobs page look nice.
shows first enterprise email in confirmation template if in dev mode
Merge pull request #247 from npm/enterprise-cleanup

Enterprise cleanup
use the same 404 page for everything, but add context to make it different for nonexistent packages
show packagey 404 only if orphan route is a valid package name
use the new package validator
drops cache on user profile page when email is changed
reduces star/unstar cache to 1 minute
adds tests; fixes #227