Merge pull request #49 from pew/master

sendmail elif typo
A small contribution with a set a ftp variable to run on a script
Typo.
Merge pull request #51 from linsomniac/master

Fixing a typo.
Adds the option to use remove-all-inc-of-but-n-full to prune incrementals of backups with long history.
Move the new section about remove-all-inc-of-but-n-full a bit lower in the config file.
Add notes about the difference between "mailx" and "mail" commands
Better explanation of the FTP_PASSWORD variable based on official documentation
Merge branch 'joubertredrat-ftp-password'
Fixed INCLIST
Small improvements to the fix of cippino before merge
Update README.md to reflect policy change about pull requests