6.2.1: Remove ensure

• Rewrote code to avoid deprecated ensure statement - @thekid

6.2.0: Welcome, XP 6.5 / PHP 5.5

• Heads up: Changed minimum XP version to XP 6.5.0, and with it the
  minimum PHP version to PHP 5.5.
  (@thekid)

6.1.2: PHP 5.4 syntax

• Merged PR #1: Use short array syntax / ::class in annotations - @thekid

6.1.1: Compatibility with XP 6.4.0

• Added forward compatibility with XP 6.4.0 - @thekid

6.1.0: PHP7 forward compat

• Added forward compatibility with PHP7 - @thekid

6.0.1: Hello XP6

• Changed dependency to use XP ~6.0 (instead of dev-master) - @thekid

6.0.0: Protocol supersedes ConnectionListener

• Heads up: Renoved deprecated peer.ftp.server.FtpConnectionListener
  class which has been superseded by FtpProtocol - (@thekid)
• Heads up: Converted classes to PHP 5.3 namespaces - (@thekid)