SUP-1080 #comment Support file larger than 2G in ftp DoFileSize
Changed doFileSize to use ftp_rawlist instead of ftp_size also added new
exception that will be thrown if file size could not be retrieved
SUP-1080 #comment If preg_match matches return the match immediately
Merge pull request #495 from kaltura/IX-9.4.0-SUP-1080

Ix 9.4.0 sup 1080