Merge pull request #7 from fdammeke/master

Proftpd Group functionality
Added creation of proftpd logdir
Fix typo for password
Include custom augeas lens for Passwd to support MD5 style passwords
Merge pull request #8 from dieterdemeyer/master

Ehancements to proftpd functionality
Added sftp module
Added SFTPClientMatch
Fix sftp.conf sites.d
Create logging dirs
Merge pull request #9 from dieterdemeyer/master

Enhancements for ftp/sftp
Modified shell to /sbin/nologin for politely refusing logins
Merge pull request #10 from dieterdemeyer/master

Modified shell to /sbin/nologin for politely refusing logins
Modified shell to /sbin/nologin for politely refusing logins
Merge pull request #11 from dieterdemeyer/master

Modified shell to /sbin/nologin for politely refusing logins
Removed duplicate field for MaxInstances
Temporarily don't manage proftpd conf
Merge pull request #12 from dieterdemeyer/master

Temporarily don't manage proftpd conf
Update sftp.conf.erb

Added SFTPRekey directive to virtualhost sftp config
Update sftp.pp

SFTPRekey directive syntax is:
SFTPRekey "none"|"required" [[interval bytes] timeout]
Update sftp.pp

Added TimeoutIdle proftpd directive