* Added no of days since last backup
Allows the number of days since last backup to be displayed
* Added last backup x days ago
Added a bracket in the last backup date stating how many days ago the last backup took place
* Added lock file creation to logs
* corrected trap display ...
* Updated comment
* updated log message
* Lockfile
* downloading ${filename}...
* Improvements up command_backup.sh
Changes to the messages displayed on screen
added trap and improved lockfile support
renamed some functions
other misc changes