Re-add support for redirecting department topics to homepages

[adamfranco]

The old codebase had a configurable set of redirects from the /topic/view/ action when the catalogId and topicId matched an item in a manual list like:

  "topic/department/ALAC" => { "url" => "http://go.middlebury.edu/ALAC" },
  "topic/department/AMCV" => { "url" => "http://go.middlebury.edu/AMCV" },
  "topic/department/AMLT" => { "url" => "http://go.middlebury.edu/AMLT" },
  "topic/department/AMST" => { "url" => "http://go.middlebury.edu/AMST" },
  "topic/department/ARBC" => { "url" => "http://go.middlebury.edu/ARBC" },
  "topic/department/ARDV" => { "url" => "http://go.middlebury.edu/ARDV" },
  "topic/department/ART" => { "url" => "http://go.middlebury.edu/ART" },
  "topic/department/BIOL" => { "url" => "http://go.middlebury.edu/BIOL" },
  "topic/department/CHEM" => { "url" => "http://go.middlebury.edu/CHEM" },
  "topic/department/CHNS" => { "url" => "http://go.middlebury.edu/CHNS" },
  "topic/department/CLAS" => { "url" => "http://go.middlebury.edu/CLAS" },
  "topic/department/CSCI" => { "url" => "http://go.middlebury.edu/CSCI" },
  "topic/department/DANC" => { "url" => "http://go.middlebury.edu/DANC" },
  "topic/department/ECON" => { "url" => "http://go.middlebury.edu/ECON" },
  "topic/department/EDST" => { "url" => "http://go.middlebury.edu/EDST" },
  "topic/department/ENAM" => { "url" => "http://go.middlebury.edu/ENAM" },
  "topic/department/ENGL" => { "url" => "http://go.middlebury.edu/ENGL" },
  "topic/department/ENVS" => { "url" => "http://go.middlebury.edu/ENVS" },
  "topic/department/FMMC" => { "url" => "http://go.middlebury.edu/FMMC" },
  "topic/department/FREN" => { "url" => "http://go.middlebury.edu/FREN" },
  "topic/department/FYSE" => { "url" => "http://go.middlebury.edu/FYSE" },
  "topic/department/GEOG" => { "url" => "http://go.middlebury.edu/GEOG" },
  "topic/department/GEOL" => { "url" => "http://go.middlebury.edu/GEOL" },
  "topic/department/GRMN" => { "url" => "http://go.middlebury.edu/GRMN" },
  "topic/department/HARC" => { "url" => "http://go.middlebury.edu/HARC" },
  "topic/department/HIST" => { "url" => "http://go.middlebury.edu/HIST" },
  "topic/department/HUDV" => { "url" => "http://go.middlebury.edu/HUDV" },
  "topic/department/INDE" => { "url" => "http://go.middlebury.edu/INDE" },
  "topic/department/INTD" => { "url" => "http://go.middlebury.edu/INTD" },
  "topic/department/INTL" => { "url" => "http://go.middlebury.edu/INTL" },
  "topic/department/IPEC" => { "url" => "http://go.middlebury.edu/IPEC" },
  "topic/department/ISEA" => { "url" => "http://go.middlebury.edu/ISEA" },
  "topic/department/ISRU" => { "url" => "http://go.middlebury.edu/ISRU" },
  "topic/department/ITAL" => { "url" => "http://go.middlebury.edu/ITAL" },
  "topic/department/JAPN" => { "url" => "http://go.middlebury.edu/JAPN" },
  "topic/department/LITP" => { "url" => "http://go.middlebury.edu/LITP" },
  "topic/department/LITS" => { "url" => "http://go.middlebury.edu/LITS" },
  "topic/department/MATH" => { "url" => "http://go.middlebury.edu/MATH" },
  "topic/department/MBBC" => { "url" => "http://go.middlebury.edu/MBBC" },
  "topic/department/MUSC" => { "url" => "http://go.middlebury.edu/MUSC" },
  "topic/department/NSCI" => { "url" => "http://go.middlebury.edu/NSCI" },
  "topic/department/PGSE" => { "url" => "http://go.middlebury.edu/PGSE" },
  "topic/department/PHED" => { "url" => "http://go.middlebury.edu/PHED" },
  "topic/department/PHIL" => { "url" => "http://go.middlebury.edu/PHIL" },
  "topic/department/PHYS" => { "url" => "http://go.middlebury.edu/PHYS" },
  "topic/department/PSCI" => { "url" => "http://go.middlebury.edu/PSCI" },
  "topic/department/PSYC" => { "url" => "http://go.middlebury.edu/PSYC" },
  "topic/department/RELI" => { "url" => "http://go.middlebury.edu/RELI" },
  "topic/department/RUSS" => { "url" => "http://go.middlebury.edu/RUSS" },
  "topic/department/SISP" => { "url" => "http://go.middlebury.edu/SISP" },
  "topic/department/SOAN" => { "url" => "http://go.middlebury.edu/SOAN" },
  "topic/department/SPAN" => { "url" => "http://go.middlebury.edu/SPAN" },
  "topic/department/STLD" => { "url" => "http://go.middlebury.edu/STLD" },
  "topic/department/TEDU" => { "url" => "http://go.middlebury.edu/TEDU" },
  "topic/department/THEA" => { "url" => "http://go.middlebury.edu/THEA" },
  "topic/department/WAGS" => { "url" => "http://go.middlebury.edu/WAGS" },
  "topic/department/WRPR" => { "url" => "http://go.middlebury.edu/WRPR" },

This should be reimplemented in the new codebase for consistency.

Alternatively, we could provide links to the department site on these /topic/view/* pages. These pages are still useful for providing a listing of sections by term, so a department homepage link might be a better addition.