Chat Redesign: + Skin support. + New 'ChatSkin' instance parameter, with currently two possible values: 'classic' and 'bubbles'. + Skins are located in the new packages/xowiki/www/resources/chat-skins/ directory. + New 'bubbles' skin, default for the chat package. + Old skin renamed to 'classic', default for the xowiki includelet. + New skins can be created by just adding the css and js files in the skins directory, and naming them accordingly. For example, being '$skin' the name of the new skin, the files should be named chat-$skin-common.js and chat-$skin.css. + New '-skin' parameter to the Chat login proc, containing the name of the skin (i.e. 'classic' or 'bubbles'). + Bump version number.
Give xowiki chat also some kind of nice skin and centralize css retrieval
TODO: something smarter can be done in order to retrieve the proper css, based e.g. on theme, chat skin (to be implemented) etc. To be discussed is some way to resolve resources based on the theme.