[Extend] : Make pagination elements editable by user

[caneruguz]

If the icon fonts are not available they are not shown. Also add classes to components so they can be edited.

[caneruguz]

Now it's possible to do this with an optional hook:

    resolvePagination : function (totalPages, currentPage) {
        // this = treebeard object
        window.console.log("resolvePAgination: totalPages: ", totalPages, " currentPage: ", currentPage);
        return m("span", "totalPages: " + totalPages + " currentPage: " + currentPage);
    },