Writing redirects directly into a site’s theme code

VIP helper functions for broader redirects:

• vip_regex_redirects() — Advanced 301 redirects using regex to match and redirect URLs.
  Caution: Regex is expensive and using this helper function will cause regex operations to be run on every uncached page load.
• vip_substr_redirects() — Wildcard redirects based on the beginning of the request path. This is an alternative to vip_regex_redirects() for when only a redirect from /foo/bar/* to somewhere else is needed.