New Multi-Platform Filezilla Guide.
Modified Hosting a Website guide to point to new FTP instructions.
Fixed published and modified dates.
Filezilla images
Added note for OSX users regarding keychain, password requirement for key based auth.
Filezilla edits as per notes
Added missing period
Edited prereq section.
Merge pull request #50 from jstewart/filezilla

Filezilla