Remove inline JS from pad.html and timeslider.html

[drdla]

To improve maintainability and page loading speed, inline JS should be removed from HTML files.

Inline scripts block the rendering of the page.
Inline event handlers do not respect proper separation of concerns and make the code base harder to maintain.

[cweider]

Hm, I don’t understand. The pages timeslider.html and page.html seems fine for to me. Yes, there are 10 lines of script at the bottom, but that’s boot code that is unavoidable. The pad and time slider modules were created to do what I think you want to do. (See #371)

[drdla]

The editbar for example uses onClik event handlers directly written into the HTML, which would better be done calling something like $('#users').click(function() {...}); from a separate JS file. This improves maintainability, since it is clear, where code regarding functionality (JS) and code regarding structure (HTML) is kept.

An inline script causes the rendering of the page to be blocked until all JS code is downloaded and parsed. Until then, the user is presented no or a broken interface, which obviously is not desirable.
I haven´t investigated very much, how exactly all the modules interact etc., but as far as I can see, the paths do not depend on anything specific about the client and thus could be moved to an external JS file. The same appears to hold true for the require statements that could as well be called from an external file.

[cweider]

Ok, yea, all the onclick attributes need to go away (I have a patch for that). I also agree that the <script /> elements in the page are not desirable. I’m working on slowly removing them - the first priority is to move SocketIO into the pad.js package and then to load it asynchronously require('/pad.js', function (pad) {/*...*/}) (I just need to be very careful that this preserves debuggability). The good news is that, once cached, the difference is negligible and #449 improves the use of Expires and 304’s.

Eventually, I would want only require-kernel and the inline boot script on the page.