This patch has been made from a modification of CMFCore by Jean-Paul.
Alexandre Boeglin authored
It allows to create a new action type ('action_button') wich supports
a dynamically defined icon.

It also needs some logic in erp5_html_style/global_definition and
erp5_html_style/view_menu_box to be operational.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3305 20353a03-c40f-0410-a6d1-a30d3c3de9de
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