v2.3.4 Refinement to install and upgrade options, remove temporary files after finishing, new option --assume-yes|--yes to avoid prompts/force installs and upgrades, new option --insecure|--no-check-certificates to use curl/wget without SSL support on upgrades

pdfScale.sh

@@ -868,7 +868,6 @@ selfUpgrade() {
                 echo $'\n'"Assume yes activated, current version will be replaced with master branch"
                 _answer="y"
         else
-                echo "whyyy?"
                 echo $'\n'"Are you sure that you want to replace the current installation with the downloaded one?"
                 read -p "Y/y to continue, anything else to cancel > " _answer
                 _answer="$(lowercase $_answer)"