Log Message:
Update ion3-devel to the latest rc version, patch provided by Philip Paeps
<philip@freebsd.org>.

Release notes:

   This release features a few minor fixes. If no major problems are
   discovered, this is likely to be the last "rc" release before the
   first and hopefully final "stable" release.

ChangeLog:

   o Binding guards weren't being used
   o Set 'target' to requested instead of None on refused
     SelectionNotify too.  This seems to fix Xterm's paste
     slowness.