Niels Thykier d7a676d074 Aggregate all migration decisions and present it in excuses
With this change, Britney can now provide a very brief summary of the
migration via one single value (YAML) or line (HTML).  This solves two
issues:

 * It provides an aggregated version of the policy decision without
   having to loop over all policies (and even those would not give
   a full verdict on their own as not all rejections come from
   policies)

 * It enables a simple way to inform readers of the HTML excuses of
   whether a rejection is permanent or not.  This should hopefully
   make it easier for contributors to understand Britney and react
   more pro-actively.

Signed-off-by: Niels Thykier <niels@thykier.net>
2017-02-13 19:37:53 +00:00
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