Update Suricata packge to v0.2-BETA -- bug fixes and several new features

Suricata 1.4.6 pkg. v0.2-BETA
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This is the second update for the Suricata package for pfSense.  This update corrects a number of minor bugs from the initial 0.1-BETA release and introduces several new features.

1. Barnyard2 now offers Bro-IDS output capability for sending alert data to a remote Bro-IDS instance.

2. The Rules Update tab has been significantly overhauled and the appearance brought more in line with the other package tabs.  A new "force update" button is now available to force a new rules package download.  The MD5 hashes and files dates for the currently downloaded rules packages are now shown in the dialog.

3. A built-in Dashboard Widget is now installed along with the Suricata package.  The widget will show up in the list of available widgets in the Dashboard window.  When removing the Suricata package, the state of the Dashboard Widget will be remembered and restored when the package is reinstalled (if "save settings on uninstall" is enabled on the GLOBAL tab).