jquery-ui-themes: add license info

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/jquery-ui-themes/jquery-ui-themes.mk

@@ -7,6 +7,8 @@
 JQUERY_UI_THEMES_VERSION = 1.8.21
 JQUERY_UI_THEMES_SITE = http://jquery-ui.googlecode.com/files
 JQUERY_UI_THEMES_SOURCE = jquery-ui-themes-$(JQUERY_UI_THEMES_VERSION).zip
+JQUERY_UI_THEMES_LICENSE = MIT
+JQUERY_UI_THEMES_LICENSE_FILES = MIT-LICENSE.txt
 JQUERY_UI_THEMES_DEPENDENCIES = jquery-ui
 
 define JQUERY_UI_THEMES_EXTRACT_CMDS