Ask for saving changes before opening recent project

Fixes #1065
Make autosave file name the same for save and load. Fix #722
Merge pull request #1253 from softrabbit/issue722

Make autosave file name the same for save and load
Merge pull request #1250 from Lukas-W/stable-1.1-iss1065

Ask for saving changes before opening recent project
Correct the program name and site in the descriptions.
More name & site fixes
Merge branch 'Umcaruje-stable-1.1-namefix' into stable-1.1
Fix some memory leaks