Fix/timeformat (#122)

* Fix #121: confused day with month thanks to time.Format
* Add outdir template variable example

example.conf

@@ -12,8 +12,10 @@ user = 00000000
 loglevel = "verbose"
 
 # directory where  to store downloaded  ads. kleingebaeck will  try to
-# create it. must be a quoted string.
-outdir = "test"
+# create it. must be a quoted string. You can also include a couple of 
+# template variables, e.g:
+# outdir = "test-{{.Year}}-{{.Month}}-{{.Day}}"
+outdir = "test" 
 
 # template for  stored adlistings.
 template="""