Fix #1424 : Editing a story don't work
Fix #1427 stamp background
Merge pull request #605 from romainneutron/fix-1424

[3.8] Fix 1424 : story editing don't work
Fix #1425 Zindex issue
Fix #1421 Overflow issue
Fix #1420 Fix wording
Merge pull request #606 from romainneutron/fix-1427

[3.8] Fix 1427
Merge pull request #607 from romainneutron/fix-1426

[3.8] Fix stamp text position
Merge pull request #608 from nlegoff/fix_1425

[3.8] Fix #1425 Zindex issue
Merge pull request #610 from nlegoff/fix_1420

[3.8] Fix 1420 Wording issue
Merge pull request #609 from nlegoff/fix_1421

[3.8] Fix 1421 overflow issue
Update dependencies, fix imagine transparency issue
Fix tmp directories cleanup