renaming etherdump -> pppadump

bin/pppadump

@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+from __future__ import print_function
+import sys
+
+usage = """Usage:
+    pppadump CMD
+
+where CMD could be:
+    appendmeta
+    creatediffhtml
+    deletepad
+    dumpcsv
+    gethtml
+    gettext
+    html5tidy
+    index
+    init
+    join
+    listauthors
+    list
+    pull
+    pushhtml
+    revisionscount
+    sethtml
+    settext
+    showmeta
+    status
+
+For more information on each command try:
+    pppadump CMD --help
+
+"""
+
+try:
+    cmd = sys.argv[1]
+    if cmd.startswith("-"):
+    	cmd = "sync"
+    	args = sys.argv
+    else:
+    	args = sys.argv[2:]
+except IndexError:
+    print (usage)
+    sys.exit(0)
+try:
+    # http://stackoverflow.com/questions/301134/dynamic-module-import-in-python
+    cmdmod = __import__("pppadump.commands.%s" % cmd, fromlist=["pppadump.commands"])
+    cmdmod.main(args)
+except ImportError as e:
+    print ("Error performing command '{0}'\n(python said: {1})\n".format(cmd, e))
+    print (usage)
+