Hungarian translation update by mtomi78.

Closes #4120.
Italian translation update by Alpha93.

Closes #4121.
Update translations.
Updated textures by Christian Scholz (cnceo)
Add unit test to prevent new dependencies from lib/framework to src/ from being added undetected.
Do not use WZ_DECL_THREAD on MacOSX. This makes WZ_DECL_THREAD not worth in general for now.
Merge branch 'bugfixes'