Merge pull request #432 from bmeeks8/master

Fix bad include reference in Snort Widget -- caused pkg start crash with Snort
squid3 - change sync gui to accept system sync
squid3 - remove debug code from sync_on_changes function
Fix whitespaces and indent
Adjust unbound to wirk with PBI

Make necessary changes on unbound to make it work on pfSense 2.1 using
PBI, also, bump version to 1.4.19_02

Fixes #2817
Bump unbound to 1.4.20 since there were important changes
Dansguardian - New sync gui and fixes on clamav startup script manipulation
Update Snort package to ver 2.5.7 - bug fixes and new features