New moodbar implementation

[Joe Rabinoff]

Hola folks,

I just submitted the current version of the moodbar patch to bugs.kde.org:

    http://bugs.kde.org/show_bug.cgi?id=132782

As always, most information about it can be found on the Moodbar wiki page.  
The current patch adds no dependencies to amarok proper, and the moodbar 
calculator is a separate package (hosted on pwsp, with an svn repository, the 
works).  Hobbsee assures me that it's no problem to package things this way 
for Ubuntu, and gruen0 had no trouble making Gentoo ebuilds, so packaging 
should no longer be an issue. 

At the moment the moodbar is enabled by default at compile-time and disabled 
by default in the config.  The compile-time flag can (should?) easily be 
removed; just remove all #ifdef HAVE_MOODBAR statements, and a few lines from 
configure.in.in and configure.in.bot.  If the moodbar is enabled in the 
config and the binary can't be found then it pops up a statusbar error 
message; I think this is reasonable, since if the binary package isn't 
installed yet the moodbar is enabled, then the user should know about it.  
Anyway I'm happy to tinker with these things if you want, especially after 
the patch is applied.  Again, please assign me any moodbar-related 
bugreports.

The moodbar code is stable, and many devs have signed off on it.  Any more 
discussion or flaming is probably best attached to the bug report.

You are now up to date.  Happy moodbaring!

Joe Rabinoff (QBob)