Add a few fixes in CHANGES that were forgotten.
Add a few fixes in CHANGES that were forgotten.

We should really automate the generation of the log of fixes for CHANGES.

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