Add a cache for initialSync responses that expires after 5 minutes

Missing yield on guest access auth check

Needs matrix-org/sytest#125 to land first

Needs matrix-org/sytest#125 to land first

Allow guest access to /sync

Conflicts:
	synapse/api/filtering.py

Add top level filters for filtering by room id

Documented by matrix-org/matrix-doc#246

Documented by matrix-org/matrix-doc#246

Return room avatar URLs in /publicRooms

Spec: https://github.com/matrix-org/matrix-doc/pull/244
Tests: https://github.com/matrix-org/sytest/pull/121

Spec: https://github.com/matrix-org/matrix-doc/pull/244
Tests: https://github.com/matrix-org/sytest/pull/121

Actually look up required remote server key IDs

set.union() is a side-effect-free function that returns the union of two
sets. This clearly wanted .update(), which is the side-effecting mutator
version.

Generate code coverage report when running jenkins.sh

Matthew/no identicons

Add display_name to 3pid invite in m.room.member invites

stop generating default identicons. reverts most of 582019f8 and solves vector-web/vector-im#346

Strip address and such out of 3pid invites

We're not meant to leak that into the graph

Fix 500 error when back-paginating search results

We were mistakenly adding pagination clauses to the count query, which then
failed because the count query doesn't join to the events table.