Merge branch 'excon' into 'development'

added missing excon package

See merge request !8

download.yaml

@@ -163,4 +163,9 @@ resources:
     filename: "public_suffix.gem"
     validation:
       type: "sha256"
-      value: "a99967c7b2d1d2eb00e1142e60de06a1a6471e82af574b330e9af375e87c0cf7" 
+      value: "a99967c7b2d1d2eb00e1142e60de06a1a6471e82af574b330e9af375e87c0cf7" 
\ No newline at end of file
+  - url: "https://rubygems.org/downloads/excon-0.73.0.gem" 
+    filename: "excon-0.73.0.gem"
+    validation:
+      type: "sha256"
+      value: "bcee89692736d075ee41c904e98e80d9f94793d7b71d28bea1cc73078c8777ff"