Merge branch 'eliminate-scheduler' into 'master'

update docs

See merge request !31

docs/40_Usage/10_Backup.md

+```
+# ./backup.sh -?
+
+  ___ ___ ___ ___         _______            __
+ |   |   Y   |   |       |   _   .---.-.----|  |--.--.--.-----.
+ |.  |.      |.  |       |.  1   |  _  |  __|    <|  |  |  _  |
+ |.  |. \_/  |.  |___    |.  _   |___._|____|__|__|_____|   __|
+ |:  |:  |   |:  1   |   |:  1    \                     |__|
+ |::.|::.|:. |::.. . |   |::.. .  /
+ `---`--- ---`-------'   `-------'
+
+_______________________________________________________________________________  ___  __   _
+
+Param: show help
+
+START A BACKUP
+
+This script starts 
+  - the database backups and creates dumps locally
+  - the file backup (using restic or duplicity)
+
+SYNTAX:
+
+    backup.sh [OPTIONS]
+
+    default: no parameter:
+
+OPTIONS:
+
+    -d, --dryrun  just show infos, do not start a backup
+    -h, --help    Show this help
+
+    The following parameters force the backup type (if using duplicity):
+    -a, --auto    force auto 
+    -o, --older   duplicity type=auto: repeat full backup if last full 
+                  backup is older than ... like "1M" for 1 month
+    -f, --full    force full backup (if supported)
+    -i, --inc     force incrmenental backup
+
+```
+

docs/40_Usage/30_Filetransfer.md

+```
+# ./transfer.sh -?
+
+  ___ ___ ___ ___         _______            __
+ |   |   Y   |   |       |   _   .---.-.----|  |--.--.--.-----.
+ |.  |.      |.  |       |.  1   |  _  |  __|    <|  |  |  _  |
+ |.  |. \_/  |.  |___    |.  _   |___._|____|__|__|_____|   __|
+ |:  |:  |   |:  1   |   |:  1    \                     |__|
+ |::.|::.|:. |::.. . |   |::.. .  /
+ `---`--- ---`-------'   `-------'
+
+     ,--.                                 ,---.               
+   ,-'  '-.,--.--. ,--,--.,--,--,  ,---. /  .-' ,---. ,--.--. 
+   '-.  .-'|  .--'' ,-.  ||      \(  .-' |  `-,| .-. :|  .--' 
+     |  |  |  |   \ '-'  ||  ||  |.-'  `)|  .-'\   --.|  |    
+     `--'  `--'    `--`--'`--''--'`----' `--'   `----'`--'   
+_______________________________________________________________________________  ___  __   _
+
+HELP:
+
+  Transfer local files to a backup target.
+
+    target       sftp://imlbackup@storage-connector.iml.unibe.ch//netshare/restic-backup
+    backup tool  restic
+
+  PARAMETERS:
+    transfer.sh       - incremental backup
+    transfer.sh full  - full backup
+    transfer.sh dumps - transfer local dumps only
+    transfer.sh prune - cleanup backup data only (no backup)
+    transfer.sh help  - show this help (works with -h and -? too)
+    
+```

docs/40_Usage/40_Cronjob.md

+To start a daily backup at 23:03:
+
+```shell
+$ cat /etc/cron.d/client-backup 
+3 23 * * * root /opt/imlbackup/client/backup.sh >/dev/null 2>&1
+```
+
+... or with using the cronwrapper
+
+see <https://github.com/axelhahn/cronwrapper>
+
+TTL is 1440 for 1440 min = 1d
+
+```shell
+$ cat /etc/cron.d/client-backup 
+3 23 * * * root /usr/local/bin/cronwrapper.sh 1440 /opt/imlbackup/client/backup.sh 'iml-backup'
+```

docs/40_Usage/50_Restore_files.md

+TODO
+
+To start an interactive tool:
+
+`./restore.sh`
+
+or
+
+`./restore.sh [backupped_folder]`

docs/40_Usage/60_Restore_a_database.md

+TODO
+
+`localdump.sh reatore [type]`
+
+i.e.
+
+`localdump.sh reatore mysql`
+
+to start interactive restore.
\ No newline at end of file