include sudo and common.user in base state
put top in salt-master repo, symlink to /etc/salt/top.sls
slight cleanup of reviewboard state
ensure pip is installed, require pip in states that need it
t455: ensure sshd is always running
t442: move common/user/ >> users/
t442: provide example pillar data - user definition
t431: opensmtpd config updates to support smtp relay
t431: complete refactor of opensmtpd state

 * refacor states to store the details in pillar
 * tweak names for sensibility
 * pull sources from opensmtpd.org instead of from salt master - stay current
 * support smtp relay and auth with a provider like gmail
clean up developer setup and drop into base
t481: initial state definition and config for salt minions
t468: salt master self-management: