Cut 2.18.0-rc.1 (#7186)

Signed-off-by: NBartlomiej Plotka <bwplotka@gmail.com>

CHANGELOG.md

-## 2.18.0-rc.0 / 2020-04-24
+## 2.18.0-rc.1 / 2020-04-30
 
 * [CHANGE] Federation: Only use local TSDB for federation (ignore remote read). #7077
 * [CHANGE] Rules: `rule_evaluations_total` and `rule_evaluation_failures_total` have a `rule_group` label now. #7094
 * [FEATURE] Tracing: Added experimental Jaeger support #7148
 * [ENHANCEMENT] TSDB: Significantly reduce WAL size kept around after a block cut. #7098
 * [ENHANCEMENT] Discovery: Add `architecture` meta label for EC2. #7000
+* [BUGFIX] UI: Fixed wrong MinTime reported by /status. #7182
 * [BUGFIX] React UI: Fixed multiselect legend on OSX. #6880
 * [BUGFIX] Remote Write: Fixed blocked resharding edge case. #7122
 * [BUGFIX] Remote Write: Fixed remote write not updating on relabel configs change. #7073

VERSION

-2.18.0-rc.0
+2.18.0-rc.1