dsnap-sync: rename project and introduce the fork

o distict the dash version from original work of Wes Barnett
o circumvit any name clashes

find_snapper_config

@@ -1,11 +1,11 @@
-#!/bin/bash
+#!/bin/sh
 
 etcdirs="sysconfig default conf.d"
 
 for x in $etcdirs; do
     d=/etc/$x/snapper
-    if [[ -f $d ]]; then
-	    sed -i 's@^SNAPPER_CONFIG=.*@SNAPPER_CONFIG='$d'@g' bin/snap-sync
+    if [ -f $d ]; then
+	    sed -i 's@^SNAPPER_CONFIG=.*@SNAPPER_CONFIG='$d'@g' bin/dsnap-sync
         exit 0
     fi
 done