lnd v0.11.0 Release Candidate 1

[Olaoluwa Osuntokun]

Hi y'all,

The first release candidate for the upcoming `v0.11.0-beta` release is now
available: https://github.com/lightningnetwork/lnd/releases/tag/v0.11.0-beta.rc1

The release notes are nearly complete, and should be finalized within a day
or two.

This release adds a number of useful RPC calls, fixes numerous bugs, and
also resolves the **force close bugs** that has plagued many routing nodes.
This release comes a bit later than our usual cadence, and was delayed
mainly to ensure that we would ship a new major release with the force close
bugs addressed.

If you're able to do so, we'd greatly appreciate any direct testing of this
new release candidate, as well as bug reports if something seems out of
place.

-- Laolu