[parrot/parrot] e25be6: [config] Configure warn_experimental flags

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/parrot/parrot
  Commit: e25be6df87cacec167bc7a2aa902df07c7b8f59a
      https://github.com/parrot/parrot/commit/e25be6df87cacec167bc7a2aa902df07c7b8f59a
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2014-11-22 (Sat, 22 Nov 2014)

  Changed paths:
    M ChangeLog
    M Configure.pl
    M lib/Parrot/Configure/Messages.pm

  Log Message:
  -----------
  [config] Configure warn_experimental flags

warn on non-default gc, intval and floatval.
Closes #1148