Changing default for CoqIDE project to append arguments.
Changing default for CoqIDE project to append arguments.

Implement wish #3582.

silene/coq,herbelin/github-coq,Zimmi48/coq,JasonGross/coq,jpdeplaix/coq,letouzey/coq-wip,mattam82/coq,asr/coq,gmalecha/coq,amintimany/coq,Matafou/coq,letouzey/coq-wip,maximedenes/coq,herbelin/github-coq,mattam82/coq,JasonGross/coq,amintimany/coq,ale-f/coq,gares/coq,william-lawvere/coq,SkySkimmer/coq,amintimany/coq,gares/coq,Matafou/coq,silene/coq,Zimmi48/coq,ejgallego/coq,aspiwack/coq,Lionel-Rieg/coq,TheTypoMaster/coq,mlasson/coq,silene/coq,Ptival/coq,maximedenes/coq,ejgallego/coq,maximedenes/coq,aspiwack/coq,Zimmi48/coq,ppedrot/coq,TheTypoMaster/coq,coq/coq,coq/coq,JasonGross/coq,ppedrot/coq,gmalecha/coq,ale-f/coq,ale-f/coq,coq/coq,Matafou/coq,Ptival/coq,jpdeplaix/coq,mattam82/coq,TheTypoMaster/coq,TOSPIO/coq,william-lawvere/coq,ppedrot/coq,mlasson/coq,ejgallego/coq,ppedrot/coq,barras/coq,jpdeplaix/coq,SkySkimmer/coq,SkySkimmer/coq,ppedrot/coq,Zimmi48/coq,TOSPIO/coq,letouzey/coq-wip,william-lawvere/coq,coq/coq,maximedenes/coq,letouzey/coq-wip,gmalecha/coq,8l/coq,aspiwack/coq,Lionel-Rieg/coq,gares/coq,ejgallego/coq,TOSPIO/coq,mlasson/coq,SkySkimmer/coq,barras/coq,asr/coq,8l/coq,asr/coq,Lionel-Rieg/coq,gares/coq,JasonGross/coq,8l/coq,herbelin/github-coq,barras/coq,gares/coq,maximedenes/coq,Ptival/coq,letouzey/coq-wip