Prefer to use information from NS rather than descriptor
We need to compute the hash digest of the documents during (re)loading
We need the ORPort to be an int, convert it from the get-go
We need to remember the digests of the documents the bridge published
Update the Bridge class docstring
Only add bridges for which their documents were verified by the BA
We should be consistant and use lowercase
Add some unit tests for Bridges module
Update Bridge.__init__() docstring for ip
Merge branch 'hotfix/ude-persistent' into testing/tpo-sysrqb/bug9264_rebased_1
Revert "We should be consistant and use lowercase"

This reverts commit b502658ff210630328e56c142368f4b44357a205.

Signed-off-by: Isis Lovecruft <isis@torproject.org>
Merge branch 'testing/tpo-sysrqb/bug9264_rebased_1-test2' into develop
Fix a typo in doc/DESCRIPTORS.md.