GUI Translation updates:

- Updated german translation
- Removed obsolete strings from ko and sv translation

gui/cppcheck_de.ts

@@ -332,7 +332,7 @@ Parameter: -l(line) (file)
     <message>
         <location filename="main.ui" line="436"/>
         <source>Show S&amp;cratchpad...</source>
-        <translation type="unfinished"></translation>
+        <translation>Zeige Schmierzettel</translation>
     </message>
     <message>
         <location filename="main.ui" line="486"/>
@@ -389,7 +389,7 @@ Parameter: -l(line) (file)
     <message>
         <location filename="main.ui" line="559"/>
         <source>Filter results</source>
-        <translation type="unfinished"></translation>
+        <translation>Filterergebnisse</translation>
     </message>
     <message>
         <location filename="main.ui" line="575"/>
@@ -762,7 +762,7 @@ Möchten Sie die Datei von der Liste der zuletzt benutzten Projekte entfernen?</
     <message>
         <location filename="translationhandler.cpp" line="37"/>
         <source>Italian</source>
-        <translation type="unfinished"></translation>
+        <translation>Italienisch</translation>
     </message>
     <message>
         <location filename="translationhandler.cpp" line="39"/>
@@ -805,7 +805,7 @@ Möchten Sie die Datei von der Liste der zuletzt benutzten Projekte entfernen?</
     <message>
         <location filename="platforms.cpp" line="37"/>
         <source>Build-in</source>
-        <translation type="unfinished"></translation>
+        <translation>Build-In</translation>
     </message>
     <message>
         <location filename="platforms.cpp" line="38"/>
@@ -1177,17 +1177,17 @@ Legen Sie unter dem Menü Ansicht fest, welche Art von Fehlern angezeigt werden
     <message>
         <location filename="scratchpad.ui" line="14"/>
         <source>Scratchpad</source>
-        <translation type="unfinished"></translation>
+        <translation>Schmierzettel</translation>
     </message>
     <message>
         <location filename="scratchpad.ui" line="48"/>
         <source>filename</source>
-        <translation type="unfinished"></translation>
+        <translation>Dateiname</translation>
     </message>
     <message>
         <location filename="scratchpad.ui" line="55"/>
         <source>Check</source>
-        <translation type="unfinished">Prüfe</translation>
+        <translation>Prüfe</translation>
     </message>
 </context>
 <context>

gui/cppcheck_ko.ts

@@ -401,10 +401,6 @@ Kate로 파일을 열고, 해당 행으로 이동하는 예제:
         <source>Filter results</source>
         <translation>필터링 결과</translation>
     </message>
-    <message>
-        <source>Project MRU placeholder</source>
-        <translation type="obsolete">최근 사용된 프로젝트 표시</translation>
-    </message>
     <message>
         <source>Windows 32-bit ANSI</source>
         <translation>Windows 32-bit ANSI</translation>
@@ -975,10 +971,6 @@ To toggle what kind of errors are shown, open view menu.</source>
         <source>Ideal count:</source>
         <translation>최적 값:</translation>
     </message>
-    <message>
-        <source>TextLabel</source>
-        <translation type="obsolete">TextLabel</translation>
-    </message>
     <message>
         <source>Force checking all #ifdef configurations</source>
         <translation>모든 #ifdef 설정을 강제로 검사</translation>
@@ -1137,10 +1129,6 @@ To toggle what kind of errors are shown, open view menu.</source>
         <source>Portability warnings:</source>
         <translation>이식성 경고:</translation>
     </message>
-    <message>
-        <source>TextLabel</source>
-        <translation type="obsolete">TextLabel</translation>
-    </message>
     <message>
         <source>Performance issues:</source>
         <translation>성능 경고:</translation>

gui/cppcheck_sv.ts

@@ -1228,10 +1228,6 @@ För att ställa in vilka fel som skall visas använd visa menyn.</translation>
         <source>Ideal count:</source>
         <translation>Optimalt värde:</translation>
     </message>
-    <message>
-        <source>TextLabel</source>
-        <translation type="obsolete">TextLabel</translation>
-    </message>
     <message>
         <location filename="settings.ui" line="114"/>
         <source>Force checking all #ifdef configurations</source>
@@ -1424,10 +1420,6 @@ För att ställa in vilka fel som skall visas använd visa menyn.</translation>
         <source>Portability warnings:</source>
         <translation>Portabilitets varningar:</translation>
     </message>
-    <message>
-        <source>TextLabel</source>
-        <translation type="obsolete">TextLabel</translation>
-    </message>
     <message>
         <location filename="stats.ui" line="308"/>
         <source>Performance issues:</source>