* Two things:
* Change how we populate and clear leader UUID. This fixes a case where
if a standby disconnects from an active node and reconnects, without the
active node restarting, the UUID doesn't change so triggers on a new
active node don't get run.
* Add a bunch of test helpers and minor updates to things.
* Support registering plugin with name only
* Make RegisterPlugin backwards compatible
* Add CLI backwards compat command to plugin info and deregister
* Add server-side deprecation warnings if old read/dereg API endpoints are called
* Address feedback
* Update kv command to use a preflight check
* Make the existing ui endpoint return the allowed mounts
* Add kv subcommand tests
* Enable `-field` in `vault kv get/put` (#4426)
* Enable `-field` in `vault kv get/put`
Fixes#4424
* Unify nil value handling
* Use preflight helper
* Update vkv plugin
* Add all the mount info when authenticated
* Add fix the error message on put
* add metadata test
* No need to sort the capabilities
* Remove the kv client header
* kv patch command (#4432)
* Fix test
* Fix tests
* Use permission denied instead of entity disabled
* Add some requirements for versioned k/v
* Add a warning message when an upgrade is triggered
* Add path help values
* Make the kv header a const
* Add the uid to mount entry instead of options map
* Pass the backend aware uuid to the mounts and plugins
* Fix comment
* Add options to secret/auth enable and tune CLI commands (#4170)
* Switch mount/tune options to use TypeKVPairs (#4171)
* switching options to TypeKVPairs, adding bool parse for versioned flag
* flipping bool check
* Fix leases coming back from non-leased pluin kv store
* add a test for updating mount options
* Fix tests
* Add a benchmark for exiration.Restore
* Add benchmarks for consul Restore functions
* Add a parallel version of expiration.Restore
* remove debug code
* Up the MaxIdleConnsPerHost
* Add tests for etcd
* Return errors and ensure go routines are exited
* Refactor inmem benchmark
* Add s3 bench and refactor a bit
* Few tweaks
* Fix race with waitgroup.Add()
* Fix waitgroup race condition
* Move wait above the info log
* Add helper/consts package to store consts that are needed in cyclic packages
* Remove not used benchmarks
