Fix and Add support for SS and SNS xgettext tools

tools/xgettext.bat

@@ -17,8 +17,7 @@ set msgmerge=%gtprefix%msgmerge.exe
 
 md locale > nul 2>&1
 echo Generating template... 1>&2
-echo %xgettext% --from-code=UTF-8 -kS -kNS:1,2 -k_ -o locale/template.pot %*
-%xgettext% --from-code=UTF-8 -kS -kNS:1,2 -k_ -o locale/template.pot %*
+echo %xgettext% --from-code=UTF-8 -kS -kSS:2 -kNS:1,2 -kSNS:2,3 -k_ -o locale/template.pot %*
 if %ERRORLEVEL% neq 0 goto done
 
 cd locale

tools/xgettext.sh

@@ -11,7 +11,9 @@ mkdir -p locale;
 echo "Generating template..." >&2;
 xgettext --from-code=UTF-8 \
 		--keyword=S \
+		--keyword=SS:2 \
 		--keyword=NS:1,2 \
+		--keyword=SNS:2,3 \
 		--keyword=N_ \
 		--add-comments='Translators:' \
 		--add-location=file \