Rename dispcalGUI to DisplayCAL and update to version 3.1.1.0

- Rename to DisplayCAL
- Update homepage and distribution point
- Convert to versioned cask
- Add dependency on argyll-cms from homebrew
- Install complete suite of tools

Casks/dispcalgui.rb

@@ -1,11 +0,0 @@
-cask 'dispcalgui' do
-  version :latest
-  sha256 :no_check
-
-  url 'http://dispcalgui.hoech.net/download/dispcalGUI.dmg'
-  name 'dispcalGUI'
-  homepage 'https://dispcalgui.hoech.net'
-  license :gpl
-
-  app 'dispcalGUI.app'
-end

Casks/displaycal.rb

@@ -0,0 +1,21 @@
+cask 'displaycal' do
+  version '3.1.1.0'
+  sha256 '7cae3f96378833875bdbd3e010c379616c9750494a871c5a117dcde0a619d02d'
+
+  # sourceforge.net/projects/dispcalgui was verified as official when first introduced to the cask
+  url "https://downloads.sourceforge.net/dispcalgui/release/#{version}/DisplayCAL-#{version}.dmg"
+  name 'DisplayCAL'
+  homepage 'https://displaycal.net'
+  license :gpl
+
+  depends_on formula: 'argyll-cms'
+
+  # There is no sub-folder in the DMG; the root *is* the folder
+  suite '.', target: 'DisplayCAL'
+
+  zap delete: [
+                '~/Library/Application Support/dispcalGUI',
+                '~/Library/Logs/dispcalGUI',
+                '~/Library/Preferences/dispcalGUI',
+              ]
+end