Fix issue #17 in other way, with some code clenaup, and more robust
message handling.
Some eventviewer adjustment.
Merge pull request #18 from sakalajuraj/0.7.0-devel

Filter page formating improvement and IP handling correction in networkRange function.
Reformating of ChangeLog.
Added option of virtual rule ID for PCRE exceeded limit event
Fixes issue #39, from google code. MSG event tag, and other log
tags can have characters [ and ] now.