release: 6.2.5 changelog (#17766)

CHANGELOG.md

 # 6.3.0 (unreleased)
 
+# 6.2.5 (2019-06-25)
+
+### Features / Enhancements
+* **Grafana-CLI**: Wrapper for `grafana-cli` within RPM/DEB packages and config/homepath are now global flags. [#17695](https://github.com/grafana/grafana/pull/17695), [@gotjosh](https://github.com/gotjosh)
+* **Panel**: Fully escape html in drilldown links (was only sanitized before) . [#17731](https://github.com/grafana/grafana/pull/17731), [@dehrax](https://github.com/dehrax)
+
+### Bug Fixes
+* **Config**: Fix connectionstring for remote_cache in defaults.ini. [#17675](https://github.com/grafana/grafana/pull/17675), [@kylebrandt](https://github.com/kylebrandt)
+* **Elasticsearch**: Fix empty query (via template variable) should be sent as wildcard. [#17488](https://github.com/grafana/grafana/pull/17488), [@davewat](https://github.com/davewat)
+* **HTTP-Server**: Fix Strict-Transport-Security header. [#17644](https://github.com/grafana/grafana/pull/17644), [@kylebrandt](https://github.com/kylebrandt)
+* **TablePanel**: fix annotations display. [#17646](https://github.com/grafana/grafana/pull/17646), [@ryantxu](https://github.com/ryantxu)
+
 # 6.2.4 (2019-06-18)
 
 ### Bug Fixes