remove hotlinking of images in creative-commons-license-widget

...ent/plugins/creative-commons-license-widget/ccLicense.php

...ugins/creative-commons-license-widget/images/by-80x15.png

...ugins/creative-commons-license-widget/images/by-88x31.png

...ns/creative-commons-license-widget/images/by-nc-80x15.png

...ns/creative-commons-license-widget/images/by-nc-88x31.png

...creative-commons-license-widget/images/by-nc-nd-80x15.png

...creative-commons-license-widget/images/by-nc-nd-88x31.png

...creative-commons-license-widget/images/by-nc-sa-80x15.png

...creative-commons-license-widget/images/by-nc-sa-88x31.png

...ns/creative-commons-license-widget/images/by-nd-80x15.png

...ns/creative-commons-license-widget/images/by-nd-88x31.png

...ns/creative-commons-license-widget/images/by-sa-80x15.png

...ns/creative-commons-license-widget/images/by-sa-88x31.png

...s/creative-commons-license-widget/images/somerights20.png