GNOME Goal: Drop Libsexy library

Summary

Some widgets from libsexy library are integrated in Gtk+, so we can eliminate libsexy dependency in some applications.

Replace SexyIconEntry by GtkEntry icon functionality (available in GTK+ 2.16)
Replace SexyUrlLabel by GtkLabel URL functionality (available in GTK+ 2.17.1)

Useful docs:

GtkEntry reference doc. Migrating from SexyIconEntry to GtkEntry guide in Gtk+ reference manual.
GtkLabel reference doc. Migrating from SexyUrlLabel to GtkLabel guide in Gtk+ reference manual.

Note: Originally proposed by MatthiasClasen here

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Status of this goal

$/!\$ Note: Updated automatical stats can be found at http://www.gnome.org/~fpeters/reports/libsexy.html

Tip: If you choose to work on a module, create the bug report on the GNOME bugzilla, and make it block bug 585385.
This way people will know someone already works on it, and won't duplicate the work you're doing.

State	Markup
todo	`<: #ff8080> todo`
patch	`<: #ffc849> [[GnomeBug:xxxxx\|patch]]`
done	`<: #80ff80> [[GnomeBug:xxxxx\|done]]`
not needed	`<: #80ff80> not needed`

Above are the states and corresponding markup to update the modules state table below.

Tarball	Status
Desktop
file-roller	done
gedit	done
gnome-disk-utility	done
gnome-system-monitor	not needed	In commented code
vino	fixed	(was only an internal copy of SexyUrlLabel but anyway)
Development Tools
anjuta	done
External Dependencies
PolicyKit-gnome	done
Other
gitg	done
GParted	not needed
last-exit	todo
notification-daemon	not needed
rhythmbox	done
tracker	done
transmission	done
xchat-gnome	partly done	ritz: using SexySpellEntry due to lack of replacement