Point everyone to the new install page

Author: evancz

src/backend/Router.hs

@@ -142,10 +142,10 @@ redirects =
     , "Community.elm" ==> "/community"
     , "Elm.elm" ==> "/"
     , "Examples.elm" ==> "/examples"
-    , "Get-Started.elm" ==> "http://guide.elm-lang.org/get_started.html"
-    , "get-started" ==> "http://guide.elm-lang.org/get_started.html"
-    , "Install.elm" ==> "http://guide.elm-lang.org/get_started.html"
-    , "install" ==> "http://guide.elm-lang.org/get_started.html"
+    , "Get-Started.elm" ==> "http://guide.elm-lang.org/install.html"
+    , "get-started" ==> "http://guide.elm-lang.org/install.html"
+    , "Install.elm" ==> "http://guide.elm-lang.org/install.html"
+    , "install" ==> "http://guide.elm-lang.org/install.html"
     , "Learn.elm" ==> "/docs"
     , "Libraries.elm" ==> "http://package.elm-lang.org"
     , "blog/Introducing-Elm-Reactor.elm" ==> "/blog/time-travel-made-easy"

src/pages/home.elm

@@ -51,7 +51,7 @@ getStarted : Html msg
 getStarted =
   div [ class "get-started" ]
     [ a [ href "/try" ] [ text "Try Online" ]
-    , a [ href "http://guide.elm-lang.org/get_started.html" ] [ text "Install" ]
+    , a [ href "http://guide.elm-lang.org/install.html" ] [ text "Install" ]
     ]