creative commons license widget

Screenshots

Adds a sidebar widget to display creative commons license: Four languages: * English * Spanish * Italian * Catalan All creative commons licenses: * Attribution * Attribution-NoDerivs * Attribution-NonCommercial-NoDerivs * Attribution-NonCommercial * Attribution-NonCommercial-ShareAlike * Attribution-ShareAlike Three images types * somerights20 * 80×15 * 88×31