Update & improve string translation
Merge pull request #549 from ngonchan/master

Update & improve string translation
Updated changelog
Polish translation updated

Please accept it finally :)
Also in Polish there should be one more plural to fit the strings correctly. Like:
1 aktywny filtr
2,3,4 aktywne filtry
5,... aktywnych filtrów
Merge pull request #550 from skibbipl/patch-14

Polish translation updated
Updated changelog
Polish translation updated

Added another plural option.
Merge pull request #551 from skibbipl/patch-15

Polish translation updated
UPDATE LT STRINGS

update
Merge pull request #552 from smiledexter/patch-14

UPDATE LT STRINGS
Updated changelog
Updated Turkish translation
Merge pull request #553 from bitterskittles/patch-1

Updated Turkish translation
Updated changelog