feat(font-awesome): add font-awesome
feat(jquery-ui): add jquery-ui
feat(assets): add plus and minus png
feat(bootstrap): add bootstrap
feat(box): add box css

Allows to have content in the corners
feat(call): generic data api facility

Allows to call methods through a declarative api
feat(utils): Add a containsIgnoreCase selector
feat(edit): allows inline edition
feat(ultree): add javascript api
feat(ultree): add tree lines and plus-minus styles
feat(demo): demos