Suricata 1.4.6 pkg. v0.2-BETA -- some small bug fixes

Quick bug fix for three issues in the latest Surictaa v0.2-BETA release.

Bug Fixes
1. Remove calls to SIGHUP the Suricata process during clearing of alert log files.  This is not really required, and Suricata responds to SIGHUP by shutting down anyway -- which is not good!

2. Suricata Alerts Dashboard Widget auto-updating not working because getURL() function is not available in 2.1.  Replaced with proper ajax.url() call instead.  This was a copy-paste introduced error during syncing of parts of the Suricata and Snort code base.

3. The "even" and "odd" table row CSS styles were backwards in the Suricata Alerts Dashboard Widget PHP file.