Internal Version 2020.07.15.1

Release v2020.07.15.1 (#692)

* ui: Fix TiFlash log searching (#680)
* ui: Add a whitelist in i18next to fix the issue #675 (#677)
* docs: add ericsyh as a contributor (#681)
* ui: refine code and error handle (#662)
* *: Rename disable_telemetry to enable_telemetry (#684)
* ui: Update space behaviour in statement / slow log search (#682)
* ui: No need to generate ui library (#687)
* forwarder: evict invalid current picked remote (#689)
* keyviz: support to merge cold logical range (#674)
* Update release version