We need to be careful (under python 2, at least) that when we reraise an
exception after doing some error handling, we actually reraise the original
exception rather than anything that might have been raised (and handled) during
the error handling.

Fix media admin APIs

Fix quarantine media admin API

This reverts commit 08b29d45.

Reject events which have lots of prev_events

Make tests py3 compatible

Use six.itervalues in some places

add __bool__ alias to __nonzero__ methods

Add some more variables to the unittest config

Replace Queue with six.moves.queue

Use str(e) instead of e.message

Clarify that SRV may not point to a CNAME

Document contrib directory

Refactor ResponseCache usage

Refactor store.have_events

It turns out that most of the time we were calling have_events, we were only
using half of the result. Replace have_events with have_seen_events and
get_rejection_reasons, so that we can see what's going on a bit more clearly.

Avoid creating events with huge numbers of prev_events

... this should protect us from being dossed by people making silly events
(deliberately or otherwise)

In most cases, we limit the number of prev_events for a given event to 10
events. This fixes a particular code path which created events with huge
numbers of prev_events.

and a six.range change which I missed the last time

Signed-off-by: Adrian Tschira <nota@notafile.com>

This is a mixed commit that fixes various small issues

 * print parentheses
 * 01 is invalid syntax (it was octal in py2)
 * [x for i in 1, 2] is invalid syntax
 * six moves

Signed-off-by: Adrian Tschira <nota@notafile.com>

Signed-off-by: Adrian Tschira <nota@notafile.com>

There's more where that came from

Signed-off-by: Adrian Tschira <nota@notafile.com>

These worked accidentally before (python2 doesn't complain if you
compare incompatible types) but under py3 this blows up spectacularly

Signed-off-by: Adrian Tschira <nota@notafile.com>

Doing this I learned e.message was pretty shortlived, added in 2.6,
they realized it was a bad idea and deprecated it in 2.7

Signed-off-by: Adrian Tschira <nota@notafile.com>

Signed-off-by: Silke Hofstra <silke@slxh.eu>