Add a bunch more work on syscache.
1) Get the DB backend up and running (only basic jail information synced right now)
2) Setup the DB query syntax format, and add the jail info retrieval parsing for testing

Current testing strings that can be passed to the client:
jail list (list names of all currently running jails)
jail <name> id (return the JID for the desired jail)
jail <name> ip (return the IP address for the desired jail)
jail <name> path (return the system path to the jail directory)

Note: For testing purposes, these string can be passed through the client of the form:
syscache "jail list" "jail myjail id" "jail myjail ip" "jail myjail path"
This will return the list of all jails, as well as the id/ip/path of "myjail" in a single call to the cache. Eventually the client will have a simplified syntax for multiple info calls (something like "jailinfo myjail id ip path")
Merge branch 'master' of github.com:pcbsd/pcbsd