Added 'clean', 'cleandepend', and 'clobber' targets that will clean up the entire global build tree.
Added 'clean', 'cleandepend', and 'clobber' targets that will clean up
the entire global build tree.


git-svn-id: 769d22dfa2d22aad706b9a451492fb87c0735f19@6964 08b38cba-cd3b-11de-854e-f91c5b6e4272

MichaelMcDonnell/vrjuggler,LiuKeHua/vrjuggler,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,godbyk/vrjuggler-upstream-old,LiuKeHua/vrjuggler,LiuKeHua/vrjuggler,vrjuggler/vrjuggler,MichaelMcDonnell/vrjuggler,vancegroup-mirrors/vrjuggler,godbyk/vrjuggler-upstream-old,LiuKeHua/vrjuggler,godbyk/vrjuggler-upstream-old,godbyk/vrjuggler-upstream-old,vrjuggler/vrjuggler,MichaelMcDonnell/vrjuggler,LiuKeHua/vrjuggler,vancegroup-mirrors/vrjuggler,vrjuggler/vrjuggler,godbyk/vrjuggler-upstream-old,LiuKeHua/vrjuggler,vrjuggler/vrjuggler,vancegroup-mirrors/vrjuggler,LiuKeHua/vrjuggler,vancegroup-mirrors/vrjuggler,MichaelMcDonnell/vrjuggler,godbyk/vrjuggler-upstream-old,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,LiuKeHua/vrjuggler,MichaelMcDonnell/vrjuggler,MichaelMcDonnell/vrjuggler,vrjuggler/vrjuggler,vrjuggler/vrjuggler,vancegroup-mirrors/vrjuggler,vancegroup-mirrors/vrjuggler