Changed the permission grant page to use the new 'party_search' widget which allows to search for the party to grant permission to within th…
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Changed the permission grant page to use the new 'party_search' widget which allows to search for the party to grant permission to within the form, and to display the privilege hierarchy in a html tree, to convey visually the information about privilege inheritance. This includes a big hack to build the hierarchy in tcl in the oracle version, since it can't be queried directly (join doesn't like connect by in 8i).
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