Return list of distinct ext ids.

src/scripts/example.fsx

@@ -44,11 +44,11 @@ let getDownloads extid = query {
 let exts = 
     Ctx.Main.Extension
     |> Seq.map(fun c -> c.Extid)
+    |> Seq.distinct
     |> Seq.toList
 
 
 
-
 let ExtIds = ["aaagbdompnfgjaokopkpaceijcapjdde"
               "aaahoedfmconkhncmkajlkallgnkjibh"
               "aaahpjmadckbgmdbflcgblcnimbpfefg"
@@ -56,11 +56,10 @@ let ExtIds = ["aaagbdompnfgjaokopkpaceijcapjdde"
               "aaaikdbhdiebhdogngakgnmjgpkpcmln"
               ]
 
-open Deedle
-
 #load "../../packages/FsLab/Themes/DefaultWhite.fsx"
 #load "../../packages/FsLab/FsLab.fsx"
 
+open Deedle
 open FSharp.Data
 open XPlot.GoogleCharts
 open XPlot.GoogleCharts.Deedle