Use umlauts in LÖVE's installer.

Regular NSIS does not support Unicode. Use the fork Unicode NSIS if you want
to create the installer.

Also update year in license.txt.

CMakeLists.txt

@@ -1153,8 +1153,8 @@ set(CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/readme.md")
 set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/license.txt")
 
 set(CPACK_NSIS_EXECUTABLES_DIRECTORY .)
-set(CPACK_NSIS_PACKAGE_NAME "LOVE")
-set(CPACK_NSIS_DISPLAY_NAME "LOVE ${LOVE_VERSION_STR}")
+set(CPACK_NSIS_PACKAGE_NAME "LÖVE")
+set(CPACK_NSIS_DISPLAY_NAME "LÖVE ${LOVE_VERSION_STR}")
 set(CPACK_NSIS_MODIFY_PATH ON)
 
 if(LOVE_X64)
@@ -1174,7 +1174,7 @@ set(NSIS_MUI_ICON "${CMAKE_CURRENT_SOURCE_DIR}/extra/nsis\\\\love.ico")
 set(NSIS_MUI_UNICON "${CMAKE_CURRENT_SOURCE_DIR}/extra/nsis\\\\love.ico")
 
 set(CPACK_NSIS_INSTALLER_MUI_ICON_CODE "
-	!define MUI_WELCOMEPAGE_TITLE \\\"LOVE ${LOVE_VERSION_STR} Setup\\\"
+	!define MUI_WELCOMEPAGE_TITLE \\\"LÖVE ${LOVE_VERSION_STR} Setup\\\"
 	!define MUI_WELCOMEFINISHPAGE_BITMAP \\\"${NSIS_LEFT_BMP}\\\"
 	!define MUI_HEADERIMAGE_BITMAP \\\"${NSIS_TOP_BMP}\\\"
 	!define MUI_ICON \\\"${NSIS_MUI_ICON}\\\"

license.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2006-2012 LOVE Development Team
+Copyright (c) 2006-2013 LOVE Development Team
 
 This software is provided 'as-is', without any express or implied
 warranty. In no event will the authors be held liable for any damages