Iconify scenario has landed in aruba (1x)

I've just merged the iconify scenario into com.xaraya.core.  This 
essentially completes M1 (Installer Branding) and M2 (Icons) in the 1.2 
roadmap.

M1, along with branding the installer, also puts in place a new 
installer theme.  The dependency on Xaraya_Classic for install/upgrade 
operations has been moved to the installer theme.  The installer now 
makes use of the new Tango-style icons.

Translators should be aware that some strings in the installer module 
have been changed or added, and of course the installer theme needs to 
be translated.

M2 delivers a complete completely new set of visually consistent 16x16 
pixel RGBA icons and puts them to use across the core.  They are are 
located at html/modules/base/xarimages/icons, and module authors are 
encouraged to make use of them to maintain a consistent UI, via 
xarTplgetImage('base', '[icon].png').

Some of these icons are taken directly from Tango, and credit is 
attributed on the license stage of the installer.

For error/exception display, there are also new 96x96 icons at 
html/modules/base/xarimages: error.png, exception.png, info.png, and 
user-error.png.  The error templates have been updated to use them.

Module specific icons have been put in place for all the core modules, 
and the expected location for module icons has been changed to 
[module]/xarimages/[module].png.

A fallback of admin.gif will be looked for if [mod dir].png is not 
found, otherwise a generic module icon is displayed.

Module authors are encouraged to implement Tango-style icons for their 
modules when applicable.

Currently, module icons are only visible in modules_admin_modinfo().

Two milestones down, 5 to go.

See: http://www.xaraya.com/index.php/xarbb/topic/3402