[OWW-SC] New icons for OWW Feedback and Lab Notebook

[Austin Che]

    I ran this on the front page
    http://www.websiteoptimization.com/services/analyze/index.html
    The list of page objects is useful. 
    
    It said the download time given a T1 connection is 8.17 seconds. I
    didn't believe it but I cleared my browser cache and loaded the
    front page and it was really close to 8 seconds. This is awfully
    slow.
    
    The largest element object was
    http://openwetware.org/extensions/ExhibitExtension/scripts/austin-wiki-toolbox-bundle.js

    I made a small change so that should no longer be added to pages
    not using exhibit. However, the page is still measuring at 7.5
    seconds on a T1 line. I think the main problem is that the front
    page still has over 80K of images.

-- 
Austin Che           <austin at csail.mit.edu>          (617)253-5899