targets/xorg: Downgrade some extra packages
targets/xorg: Downgrade some extra packages

mesa also provides some other packages (e.g. -dev and -dbg packages),
make sure we also downgrade the ones that break when we try to
install them.

See http://packages.ubuntu.com/source/precise/mesa for a full list,
a number of them probably work fine with more recent GL libraries
and may not need downgrading (e.g. libgbm), so we do not downgrade
them.

taterbase/crouton,mkasick/crouton,taterbase/crouton,JDGBOLT/chroagh,jamgregory/crouton,StrawnPoint04/crouton,VandeurenGlenn/crouton,rperce/chroagh,dragon788/chroagh,stephen-soltesz/crouton,Timvrakas/crouton,stephen-soltesz/crouton,tonyxue/cruise,arbuztw/crouton,elkangaroo/chroagh,djmrr/crouton,twmccart/crouton,VandeurenGlenn/crouton,StrawnPoint04/crouton,marriop/newCrouton,JDGBOLT/chroagh,dragon788/chroagh,StrawnPoint04/crouton,zofuthan/crouton,StrawnPoint04/crouton,fxcebx/crouton,arbuztw/crouton,djmrr/crouton,jamgregory/crouton,rperce/chroagh,nromsdahl/crouton,tonyxue/cruise,marriop/newCrouton,jamgregory/crouton,DanDanBu/crouton,dnschneid/crouton,elkangaroo/chroagh,ikaritw/crouton,ikaritw/crouton,stephen-soltesz/crouton,fxcebx/crouton,tedm/crouton,DanDanBu/crouton,tedm/crouton,tedm/crouton,stephen-soltesz/crouton,marriop/newCrouton,twmccart/crouton,tedm/crouton,dnschneid/crouton,djmrr/crouton,taterbase/crouton,DanDanBu/crouton,StrawnPoint04/crouton,jamgregory/crouton,VandeurenGlenn/crouton,DanDanBu/crouton,arbuztw/crouton,DanDanBu/crouton,djmrr/crouton,arbuztw/crouton,tonyxue/cruise,tonyxue/cruise,mkasick/crouton,stephen-soltesz/crouton,brayniac/crouton,armgong/chroagh,nromsdahl/crouton,Timvrakas/crouton,armgong/chroagh,rperce/chroagh,nromsdahl/crouton,dragon788/chroagh,twmccart/crouton,nromsdahl/crouton,JDGBOLT/chroagh,zofuthan/crouton,fxcebx/crouton,arbuztw/crouton,arbuztw/crouton,dnschneid/crouton,armgong/chroagh,dnschneid/crouton,elkangaroo/chroagh,mkasick/crouton,DanDanBu/crouton,ikaritw/crouton,taterbase/crouton,taterbase/crouton,dragon788/chroagh,brayniac/crouton,brayniac/crouton,Timvrakas/crouton,rperce/chroagh,djmrr/crouton,fxcebx/crouton,JDGBOLT/chroagh,brayniac/crouton,jamgregory/crouton,elkangaroo/chroagh,stephen-soltesz/crouton,mkasick/crouton,ikaritw/crouton,armgong/chroagh,twmccart/crouton,mkasick/crouton,JDGBOLT/chroagh,ikaritw/crouton,twmccart/crouton,StrawnPoint04/crouton,VandeurenGlenn/crouton,ikaritw/crouton,brayniac/crouton,JDGBOLT/chroagh,mkasick/crouton,tonyxue/cruise,Timvrakas/crouton,nromsdahl/crouton,tonyxue/cruise,tedm/crouton,elkangaroo/chroagh,brayniac/crouton,Timvrakas/crouton,armgong/chroagh,dnschneid/crouton,tedm/crouton,fxcebx/crouton,Timvrakas/crouton,taterbase/crouton,zofuthan/crouton,rperce/chroagh,djmrr/crouton,dragon788/chroagh,zofuthan/crouton,dnschneid/crouton,zofuthan/crouton,twmccart/crouton,elkangaroo/chroagh,nromsdahl/crouton,rperce/chroagh,dragon788/chroagh,fxcebx/crouton,zofuthan/crouton,jamgregory/crouton,armgong/chroagh,VandeurenGlenn/crouton,VandeurenGlenn/crouton