Uses CoMon's ability to find 'upness' to email. Changed queueing between threads...

Uses CoMon's ability to find 'upness' to email.  Changed queueing between threads;  no more huge sleeps to maintain synch.

* Individual email messages per bucket
* emailed{} now pickled so as not to email the same site more than once.
* PLC anon API to get site basenames for email
* Searches RT for open/new in support or offline for tickets with hostname
* Beginnings of real chek for dbg
* Started squeezing of slices via PLC api.
*  Work in progress.  Not ready for human consumption.