webapp/files: details around links + help for sharing files (fixing commit 8ff009a7ae9e393400f9c23b66ccc64f1a332ab3)
webapp/files: details around links + help for sharing files (fixing commit 8ff009a7ae9e393400f9c23b66ccc64f1a332ab3)

tscholl2/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,DrXyzzy/smc,DrXyzzy/smc,sagemathinc/smc,sagemathinc/smc