Nitpicks in logging messages.
Moved Andrew Stribblehill from a comment to Authors. Also changed a couple of comments and messages.
Renamed variable to more suitable. Updated some comments.
cf-serverd now reads policy only once when starting

To achieve this a new timestamp field was added in GenericAgentConfig
struct. This is updated by both the startup initialisation (called from
main()) and from the policy check in daemon's main loop.
cf-execd now parses policy only once when starting

Also consolidated some ifdef's to only one.
Log better message, add a TODO comment.
Cleanups and TODOs.
Make sure last_validated_as is changed only in daemons.
Merge branch 'master' of git://github.com/jimis/core (PR #1376)

Conflicts:
	cf-serverd/cf-serverd-functions.c