Update old parts of CHANGES to use current bug numbers.
Update old parts of CHANGES to use current bug numbers.

JasonGross/coq,Zimmi48/coq,maximedenes/coq,ppedrot/coq,Matafou/coq,gares/coq,ejgallego/coq,JasonGross/coq,ppedrot/coq,maximedenes/coq,Zimmi48/coq,ejgallego/coq,maximedenes/coq,SkySkimmer/coq,coq/coq,ejgallego/coq,Zimmi48/coq,coq/coq,Matafou/coq,SkySkimmer/coq,Zimmi48/coq,Matafou/coq,maximedenes/coq,gares/coq,SkySkimmer/coq,ppedrot/coq,ejgallego/coq,gares/coq,silene/coq,coq/coq,ppedrot/coq,JasonGross/coq,JasonGross/coq,silene/coq,ppedrot/coq,coq/coq,gares/coq,maximedenes/coq,silene/coq,gares/coq,SkySkimmer/coq