Fixed deletion of startmenu folder on uninstall + code indent

nsis/cockatrice.nsi

@@ -34,6 +34,7 @@ InstallDir "$PROGRAMFILES\Cockatrice"
 !insertmacro MUI_LANGUAGE "English"
 
 Section "Application" SecApplication
+	SetShellVarContext all
 	SetOutPath "$INSTDIR"
 	File ..\build\cockatrice\Release\cockatrice.exe
 	File ..\build\oracle\Release\oracle.exe
@@ -93,6 +94,7 @@ Section "Start menu item" SecStartMenu
 SectionEnd
 
 Section Uninstall
+SetShellVarContext all
 	RMDir /r "$INSTDIR\zonebg"
 	RMDir /r "$INSTDIR\plugins"
 	RMDir /r "$INSTDIR\sounds"