* Keep line breaks when message has some new lines
Relates #1758 and #1898 and #1901
* fix link preview cropped when received
* make sure we fetch from seed if we end up with not enough snodes
* try to download recent previews if we just trusted a user
* throw if we need to rebuild path while fetching snode list from snode
* fixup no refecthing of snode list while we are fetching them already
* added test for fetch from db or seed
* fetch snode list from snode every hour
also make sure the path building does not try to get more snodes. It
just throws
* do not drop a path if an opengroup room is down and we get errors back
* do not throw an error if the snode in error in not in any path
* fix tests
* bump to v1.7.11
Audric Ackermann