feature: FTP loader

Added FTP Loader to kafka::contrib
Each ftp site is monitored by a cron job.  There is an exapmle
for testing .

Fixsed a bug in vsftpd/recipes/ssl.rb
Added UTF-8 encoding to lftp/metadata.rb
minor readme addition

Change-Id: I1ad076550dc4ff4c60c8c81928ecc042e1d3af69
Merge "minor readme addition"