enhancements:

- english README (german version will be put to the homepage)
- better commandline options
- enhanced logging capabilities and error handling
- config file support
- support to backup one or more singular ads
- add id to adlisting
- added manual page
- fixed config file reading
- fixed typo

kleingebaeck.go

@@ -1,7 +1,74 @@
 package main
 
 var manpage = `
-  kleingebaeck
-    Backup of kleinanzeigen.de
+NAME
+    kleingebaeck - kleinanzeigen.de backup tool
+
+SYNOPSYS
+        This is kleingebaeck, the kleinanzeigen.de backup tool.
+        Usage: kleingebaeck [-dvVhmoc] [<ad-listing-url>,...]
+        Options:
+        --user,-u <uid>        Backup ads from user with uid <uid>.
+        --debug, -d            Enable debug output.
+        --verbose,-v           Enable verbose output.
+        --output-dir,-o <dir>  Set output dir (default: current directory)
+        --manual,-m            Show manual.
+        --config,-c <file>     Use config file <file> (default: ~/.kleingebaeck).
+
+DESCRIPTION
+    This tool can be used to backup ads on the german ad page
+    <https://kleinanzeigen.de>.
+
+    It downloads all (or only the specified ones) ads of one user into a
+    directory, each ad into its own subdirectory. The backup will contain a
+    textfile Adlisting.txt which contains the ad contents such as title,
+    body, price etc. All images will be downloaded as well.
+
+CONFIGURATION
+    You can create a config file to save typing. By default
+    "~/.kleingebaeck.hcl" is being used but you can specify one with "-c" as
+    well.
+
+    Format is simple:
+
+        user = 1010101
+        verbose = true
+        outdir = "test"
+
+SETUP
+    To setup the tool, you need to lookup your userid on kleinanzeigen.de.
+    Go to your ad overview page while NOT being logged in:
+
+        https://www.kleinanzeigen.de/s-bestandsliste.html?userId=XXXXXX
+
+    The XXXXX part is your userid.
+
+    Put it into the configfile as outlined above. Also specify an output
+    directory. Then just execute "kleingebaeck".
+
+    You can use the -v option to get verbose output or -d to enable
+    debugging.
+
+BUGS
+    In order to report a bug, unexpected behavior, feature requests or to
+    submit a patch, please open an issue on github:
+    <https://github.com/TLINDEN/kleingebaeck/issues>.
+
+    Please repeat the failing command with debugging enabled "-d" and
+    include the output in the issue.
+
+LIMITATIONS
+    The "kleingebaeck" doesn't currently check if it has downloaded a file
+    already, so it downloads everything again every time you execute it. Be
+    aware of it. This will change in the future.
+
+    Also there's currently no parallelization implemented. This will change
+    in the future.
+
+LICENSE
+    Licensed under the GNU GENERAL PUBLIC LICENSE version 3.
+
+Author
+    T.v.Dein <tom AT vondein DOT org>
 
 `