Update libreoffice-still to 5.3.7 (#4700)

Casks/libreoffice-still.rb

@@ -1,6 +1,6 @@
 cask 'libreoffice-still' do
-  version '5.3.6'
-  sha256 '16f502fd7b2f4b62b247fd2b4903ce5c861e2b482afa961403c77164be47c4ad'
+  version '5.3.7'
+  sha256 '63c2de5eb4c37049c5ed4a71026a9b9a0151ebf9a240733051d1627df86b6b94'
 
   # documentfoundation.org was verified as official when first introduced to the cask
   url "http://download.documentfoundation.org/libreoffice/stable/#{version}/mac/x86_64/LibreOffice_#{version}_MacOS_x86-64.dmg"
@@ -34,6 +34,10 @@ cask 'libreoffice-still' do
 
   zap delete: [
                 '~/Library/Application Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/org.libreoffice.script.sfl',
+                '~/Library/Saved Application State/org.libreoffice.script.savedState',
+              ],
+      trash:  [
                 '~/Library/Application Support/LibreOffice',
+                '~/Library/Preferences/org.libreoffice.script.plist',
               ]
 end