Make dev website start on Mac too. run-blobserver was using readlink -f, which isn't available on OS X.

Change-Id: I72fb1c687b31fb0f94fd112744d314e9034bf9d8

website/blobserver-example/root/GENERATION.dat

@@ -0,0 +1,16 @@
+5f053cc6143f2624ade4ff193b2ae0dfa2fc8b68
+
+This file's random string on the first line is an optimization and
+paranoia facility for clients.
+
+If the client sees the same random string in multiple upload sessions,
+it assumes that the blobserver still has all the same blobs, and also
+it's the same server.  This mechanism is not fundamental to
+Camlistore's operation: the client could also check each blob before
+uploading, or enumerate all blobs from the server too.  This is purely
+an optimization so clients can mix this value into their "is this file
+uploaded?" local cache keys.
+
+If you deleted any blobs (or suspect any were corrupted), it's best to
+delete this file so clients can safely re-upload them.
+

website/camweb.go

@@ -282,6 +282,8 @@ func runAsChild(res string) {
 		log.Fatalf("Could not find %v in $PATH: %v", res, err)
 	}
 	cmd := exec.Command(cmdName)
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = os.Stdout
 	log.Printf("Running %v", res)
 	if err := cmd.Start(); err != nil {
 		log.Fatal("Program %v failed to start: %v", res, err)

website/scripts/run-blobserver

@@ -1,16 +1,16 @@
 #!/bin/sh
 
 set -e
-Bin=$(dirname $( readlink -f $0))
+Bin=$(perl -MFindBin -e 'print $FindBin::Bin')
 
 export CAMLI_PASSWORD=`cat $HOME/.config/camlistore/camorg-blobserver.pass`
-export CAMLI_ROOT=$Bin/../blobserver-example/root
+export CAMLI_ROOT=$Bin/blobserver-example/root
 
-cd $Bin/../..
+cd $Bin/..
 go run make.go \
 	-embed_static=false \
 	-targets=camlistore.org/server/camlistored && \
 ./bin/camlistored \
-	-configfile=$Bin/../blobserver-example/example-blobserver-config.json \
+	-configfile=$Bin/blobserver-example/example-blobserver-config.json \
 	-listen=:3179 "$@"