Advansed options for NUT config files

Allow add custom options in NUT config files. Raw text, no syntax checking.
Advansed options for NUT config files

Allow add custom options in NUT config files. Raw text, no syntax checking.
Adding button to clear havp access log

Do not know how to catch button press event, therefor 'clearlog_x' parameter taken from $_POST array during debug (similar to 'start'/'stop' events).
Fix unbound option to build with libevent
Bump unbound version, PBI was rebuilt with correct LIBEVENT option to fix https://forum.pfsense.org/index.php?topic=85781.0
Remove invalid option MSSL_CRTD
Update squid to 3.4.10_2:
Drop squid3-dev from 2.2, it's older than squid3
Revert back to Snort 2.9.6.2 for now, new version missing shared objects
Something else going on, back this out for the moment. Revert "Revert back to Snort 2.9.6.2 for now, new version missing shared objects"

This reverts commit 2aae63473d4d058f3396cf942155093b5ebfdba3.
touch up text
touch up text
fix typo
Change of find pattern in havp access log file

After switching from clamd to libclamav in havp.inc webConfigurator stop parsing of log file because of strong search pattern for clamd - "virus clamd:". Make it more universal.
Use proper binary on 2.2, based on patch submitted by Denny Page. Fixes #4118
Bump NUT package version due to last changes
File to view HAVP error log

File to render "Log" tab with HAVP error log contents. Need to be placed to /usr/local/www folder.
Add tab to view HAVP error log
Add tab to view HAVP error log
Update havp_avset.xml