[fix] #731915 use add_onload instead of plain <script> tag for progress bar.
This changeset fixes : #731915: missing inprogress style on the project page
Content fetched with ajax have their <script> tags removed. (see #734414) We
now use the _cw.html_headers.add_onload method to execute the javascript code
necessary to draw the progress bar.
In the process we removed the ProgressBarWidget and merged it in
ProgressTableView.
Pierre-Yves David <pierre-yves.david@logilab.fr> [Thu, 04 Mar 2010 09:35:34 +0100] rev 4785
add render_description method to RSSItemView to improve modularity.
The construction of the description marker of and rss entry is currently built
by the main cell_call function. This make the job hard for RSSItemView subclass
to change the default behaviour. The changeset fix this issue by extracting the
description creation into a render_description method. Such extraction are
already in place for various rss marquer.