Update included jQuery to 1.4

Presumably we'll eventually catch up and use jQuery 1.4 in SchoolTool? Do we get ours from a .deb?

No, it's added as a **file resource** in SchoolTool.

The 'jquery.min.js' is added to a directory; then it's registered using:

  <resource
      name="jquery14.js"
      file="resources/jstree/jquery.min.js"
      layer=".skin.IBasicPersonLayer" />

And then it's available for using in templates like:

    <script type="text/javascript"
            tal:attributes="src context/++resource++jquery14.js"></script>

which becomes:

    <script type="text/javascript"
            src="http://acc.candoskills.org:60020/@@/jquery14.js"></script>

in the user's browser.

Do we really need the old jQuery version? What plugins are used by CanDo or are there many scripts in it? Where in the interface I can see them to test if anything breaks?

We should upgrade jQuery in SchoolTool instead and not add workarounds like jQuery14.

I'm ok with correctly fixing this problem AFTER we get Welsh's fixes deployed.

In CanDo I've seen the plugins being used in the TreeView of Competencies, which I don't know if it's useful to the users, and I've seen jQuery code in the section-gradebook.js file, although again I don't know how it's used or it'll break with a new version of jQuery.

I also wonder if the Gradebook or the Journal use jQuery.

jsTree is registered only for IBasicPersonLayer, but INewCanDoLayer does not extend it, so resources are not picked up. INewCanDoSkin does, and that's the only difference between skin and layer. I suggest making the skin a BBB alias for the layer, as SchoolTool has done in 1.4. After that, the trees are displayed correctly even with schooltool 1.4.0.

Since the bug was reported, jQuery 1.5 was released, and is the version packaged for Ubuntu http://packages.ubuntu.com/natty/libjs-jquery . To match this, the included jQuery was upgraded to 1.5. No other changes were required.