Prevent 'pkg update' will always think that the repo is up to date if no
mtime header is sent by the http server

Submitted by:	cperciva
Ignore compiled tests
Make 410.pkg-audit more flexible

Get PKG_DBDIR from pkg -vv directly
Use /usr/sbin/pkg
Fixes: #517
Use /usr/sbin/pkg as it handles LOCALBASE properly
Substitute the value of PREFIX into periodic scripts
Revert "Substitute the value of PREFIX into periodic scripts"

This reverts commit 391e617d9f3ce1b1ad8789b1bdcfe06a5c69603a.
Merge branch 'master' of github.com:freebsd/pkg
Merge branch 'master' into testing