Hook order can now be set

A few hours ago I completed (I hope) the fix for bug 198: "Include a 
sort option for hooks" in com.xaraya.core revision
c5444737d2657534b0c14f843c7071dc6bef0f5d.

http://bugs.xaraya.com/show_bug.cgi?id=198

The order field in table xar_hooks has existed for years, but the UI for 
setting the order never existed until now.  The UI is accessible via the 
hooks link on each module in modules-admin-list 
(modules-admin-modify-$id), which focuses on the caller module.

If more than one module is hooked, an OrderSelect DD property appears 
below the available hooks where the user can shuffle the call order. 
The current implementation maintains hook order across all of a caller 
module's item types.

Hooks enabled via modules-admin-hooks will get an order, however the 
sequence cannot be set there as that screen focuses on the called module.

Regardless of which hooks UI is used, newly enabled hooks are appended 
to the end of the call order.

Module developers can start planning enhancements to take advantage of 
this change in their modules.  Of course, this change won't be 
officially available until 1.2.0 (or a possible RC) is released, but 
should appear in nightlies tonight (GMT).

See also: http://www.xaraya.com/index.php/xarbb/topic/3459