GrafX2: fix more packaging issues.

* The program didn't work when there wasn't a copy of the source
somewhere, as it could not find its data directory. Now it uses
find_path.
* Added an hvif icon and deskbar symlink.

media-gfx/grafx2/grafx2-2.5.recipe

@@ -6,12 +6,12 @@ pixel art, game graphics, and generally any detailed graphics painted with a \
 mouse."
 ARCHITECTURES="x86_gcc2"
 HOMEPAGE="http://pulkomandy.tk/projects/GrafX2"
-REVISION="1"
+REVISION="2"
 COPYRIGHT="1995-1999 Sunset Design
 2008-2015 GrafX2 project team"
 LICENSE="GNU GPL v2"
 
-SOURCE_URI="svn://pulkomandy.tk/GrafX2/trunk#2125"
+SOURCE_URI="svn://pulkomandy.tk/GrafX2/trunk#2127"
 
 PROVIDES="
 	grafx2
@@ -58,4 +58,6 @@ INSTALL()
 {
 	cd src
 	make install DESTDIR=$prefix prefix=/ datarootdir=/$relativeDataRootDir
+
+	addAppDeskbarSymlink $binDir/grafx2 GrafX2
 }