Less than "<" being filtered by JInputFilter

[C-Lodder]

Reminder: Post back on the forum: https://joomjunk.co.uk/forum/jj-shoutbox/1249-less-than-signs-do-not-appear-in-posting.html

[wilsonge]

joomla-framework/filter#15 Bug is in the Joomla Filter - this replicates it at the framework level