Revert "Fix GitHub issue WinMerge#294: Does not process CFSTR_PREFERR…

…EDDROPEFFECT on drag/drop"

This reverts commit cd4a235.

Fix GitHub issue WinMerge#367: Crash when comparing encrypted 7z files

Merge pull request WinMerge#292 from qosobrin/master

Galician and Spanish translations update

Merge pull request WinMerge#291 from Tichij/master

Update of Lithuanian translation

Merge branch 'master' of https://github.com/winmerge/winmerge