Filters message tweak & tutorial opens filter tab
Updated Vietnamese translation
Updated Polish translation
Merge pull request #926 from ngonchan/master

Updated Vietnamese translation
Merge pull request #927 from skibbipl/patch-23

Updated Polish translation
Updated changelog
Merge pull request #925 from jpeg729/tutorial_tweak

Filters message tweak & tutorial opens filter tab
Update tutorial text
Server: add app table, better error handling
Translated new string.
Merge pull request #928 from jokies/patch-2

Translated new string.