Merge todos

Cleanup 0.5.2 for release

TODO

@@ -1,28 +1,4 @@
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-1. export more variables for scripts
-   or check when they are automatically exported
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-1.1.
-Anhaengen von der -F / --filter Doku von Killerfox
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-1.2. replace sed?
-compare timing:
-   _echo () { echo "$name $msg" }
-and create
-   _techo () { echo "$timestamp $name $msg" }
-perhaps create
-   _eecho () { _techo "ERROR $msg" }
-?
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-2. clonen von anderen existierenden backups?
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-3. detect unfinished backups
-sven / markierung
-   - wie seht der Marker aus?
-      -> .ccollect-YEAR-MM-DD.HHmm.pid (like the directory)
-   --> assume incomplete, when we did not finish.
-   --> means it's complete,when rsync was successful
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 4. Add ccollect-restore.sh
    (new project, perhaps coordinated with jchome's ccollect-config)