Update CHANGES about critical bugfix and others
Update CHANGES about critical bugfix and others

ppedrot/coq,maximedenes/coq,ppedrot/coq,ppedrot/coq,Zimmi48/coq,Zimmi48/coq,JasonGross/coq,ejgallego/coq,Lionel-Rieg/coq,letouzey/coq-wip,silene/coq,william-lawvere/coq,letouzey/coq-wip,letouzey/coq-wip,Ptival/coq,maximedenes/coq,gares/coq,JasonGross/coq,SkySkimmer/coq,amintimany/coq,coq/coq,silene/coq,SkySkimmer/coq,amintimany/coq,coq/coq,william-lawvere/coq,gares/coq,william-lawvere/coq,maximedenes/coq,ppedrot/coq,ejgallego/coq,Zimmi48/coq,ppedrot/coq,gares/coq,gares/coq,maximedenes/coq,SkySkimmer/coq,gares/coq,silene/coq,letouzey/coq-wip,ejgallego/coq,Zimmi48/coq,Lionel-Rieg/coq,JasonGross/coq,Matafou/coq,ejgallego/coq,amintimany/coq,Matafou/coq,JasonGross/coq,SkySkimmer/coq,Matafou/coq,Ptival/coq,Ptival/coq,coq/coq,maximedenes/coq,letouzey/coq-wip,Lionel-Rieg/coq,coq/coq