Dead Water Polish translation update

Dead Water Polish translation update, updates delivered by Wesbane.
Heir To The Throne: Polish translation update

Heir To The Throne: Polish translation update, updates delivered by Wesbane.
Legend of Wesmere Polish translation update

Legend of Wesmere: Polish translation update, updates delivered by Rafał.
The Rise of Wesnoth: Polish translation update

The Rise of Wesnoth: Polish translation update, updates delivered by Rafał.
Removed comments

Removed comments to trigger new build.
Two Brothers: Polish translation update

Two Brothers: Polish translation update, updates delivered by Wesbane.
Merge pull request #230 from aquileia/pl

Polish translation update