conversation: automatically accepts < 20Mb files
conversation: automatically accepts < 20Mb files

and if contact is already added

Change-Id: Id1137832c5bba5f41f559db3d1c33071c9a496bf

savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc,savoirfairelinux/ring-lrc