Added sample test tube images

They come in different colours. Please note that they might go through
some design changes.

They have color differences because we will have chemicals of different
colours.
Set up jQuery UI

The files are in this structure:

[static]
    |---[js]
    |     |--jquery-ui-1.10.4.custom.min.js
    |
    |---[css]
           |---jquery-ui-1.10.4.custom.min.js
           |---[images]
                   |---all the images need are here