* govet cleanup in token store
* adding general ttl handling to login requests
* consolidating TTL calculation to system view
* deprecate LeaseExtend
* deprecate LeaseExtend
* set the increment to the correct value
* move calculateTTL out of SystemView
* remove unused value
* add back clearing of lease id
* implement core ttl in some backends
* removing increment and issue time from lease options
* adding ttl tests, fixing some compile issue
* adding ttl tests
* fixing some explicit max TTL logic
* fixing up some tests
* removing unneeded test
* off by one errors...
* adding back some logic for bc
* adding period to return on renewal
* tweaking max ttl capping slightly
* use the appropriate precision for ttl calculation
* deprecate proto fields instead of delete
* addressing feedback
* moving TTL handling for backends to core
* mongo is a secret backend not auth
* adding estimated ttl for backends that also manage the expiration time
* set the estimate values before calling the renew request
* moving calculate TTL to framework, revert removal of increment and issue time from logical
* minor edits
* addressing feedback
* address more feedback
* Start work on passing context to backends
* More work on passing context
* Unindent logical system
* Unindent token store
* Unindent passthrough
* Unindent cubbyhole
* Fix tests
* use requestContext in rollback and expiration managers
* Add backend plugin changes
* Fix totp backend plugin tests
* Fix logical/plugin InvalidateKey test
* Fix plugin catalog CRUD test, fix NoopBackend
* Clean up commented code block
* Fix system backend mount test
* Set plugin_name to omitempty, fix handleMountTable config parsing
* Clean up comments, keep shim connections alive until cleanup
* Include pluginClient, disallow LookupPlugin call from within a plugin
* Add wrapper around backendPluginClient for proper cleanup
* Add logger shim tests
* Add logger, storage, and system shim tests
* Use pointer receivers for system view shim
* Use plugin name if no path is provided on mount
* Enable plugins for auth backends
* Add backend type attribute, move builtin/plugin/package
* Fix merge conflict
* Fix missing plugin name in mount config
* Add integration tests on enabling auth backend plugins
* Remove dependency cycle on mock-plugin
* Add passthrough backend plugin, use logical.BackendType to determine lease generation
* Remove vault package dependency on passthrough package
* Add basic impl test for passthrough plugin
* Incorporate feedback; set b.backend after shims creation on backendPluginServer
* Fix totp plugin test
* Add plugin backends docs
* Fix tests
* Fix builtin/plugin tests
* Remove flatten from PluginRunner fields
* Move mock plugin to logical/plugin, remove totp and passthrough plugins
* Move pluginMap into newPluginClient
* Do not create storage RPC connection on HandleRequest and HandleExistenceCheck
* Change shim logger's Fatal to no-op
* Change BackendType to uint32, match UX backend types
* Change framework.Backend Setup signature
* Add Setup func to logical.Backend interface
* Move OptionallyEnableMlock call into plugin.Serve, update docs and comments
* Remove commented var in plugin package
* RegisterLicense on logical.Backend interface (#3017)
* Add RegisterLicense to logical.Backend interface
* Update RegisterLicense to use callback func on framework.Backend
* Refactor framework.Backend.RegisterLicense
* plugin: Prevent plugin.SystemViewClient.ResponseWrapData from getting JWTs
* plugin: Revert BackendType to remove TypePassthrough and related references
* Fix typo in plugin backends docs
