Added a repl.sh sample script to the contrib/ directory.

contrib/repl.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+EXEC=$(which ledger)
+if [[ -z "$EXEC" ]]; then
+   EXEC=$HOME/Products/ledger/ledger
+fi
+
+if [[ ! -x "$EXEC" ]]; then
+   echo Cannot find Ledger executable
+   exit 1
+fi
+
+LESS=--quit-if-one-screen exec $EXEC --pager less "$@"