this sounds like something didn't work, when in fact there may not be hits
expire_all_hits command
given the 'restart_server' command, more logical to 'start_server' 'stop_server'
no real sense of "getting" here... were just listing the hits
no real sense of "getting" a worker... instead "list_workers"
since this is just counting total number of hits, tally seems better than more ambiguous 'check'
default templates updated to be a bit more compatible with Ad server
added 'all' option to expire_hit and reject_worker
added user confirmation to quit when server is running, removed live/sandbox choice from create_hit
Merge branch 'CLI' of github.com:NYUCCL/psiTurk into ssl

Conflicts:
	psiturk/psiturk_shell.py
oops on the merge
support for linking and Ad to a particular hitId on AMT
expiring hits and ads at the same time
add an expiration date to ads which is matched to hits