Updates changelog for 6.4.5 release.

Updates changelog for 6.5.0.

Updates index page to point at What's new in 6.5.
Updates What's new in 6.5 article.

Profiling and tracing can now be enabled/disabled separately.
Adds argument for trace file path.
Support overriding profiling and tracing argument using 
environment variables.
Update docs.

Fixes #20576

* Introduce new Switch component

* Experiment with different focus style

* Review update

* Update on/off swtch colors

* WIP: Adds basic template variables CRUD start

* e2eTests: Adds aria-labels in VariableEditorCtrl

* Refactor: Simplifies a bit

* e2eTests: Adds first Template Variable CRUD for QueryVariable

* Tests: Adds ArrayPageOjbectType

* Tests: Adds createQueryVariable method

* Tests: Refactor CRUD test

* Tests: Adds datasource and dashboard to scenario

* Refactor: Fixes type errors

* Refactor: Move pages to toolkit

Resolves #20560

Fixes #20615

* calculate metrics

* fix tests

* update test

* update names

* BarGauge: measure title width

* BarGauge: added tests

* BarGauge: Improved font size handling

* Removed unused var

* BarGauge: Further font size tweaks

* BarGauge: added comments

* BarGauge: final tweak

* Updated snapshot*

* Fixed issues

Fixed a typo.

* Updates after feedback

* docs: remove br tag in whats new

* Add Service Quota part

* Update docs after pr feedback

* Describing new features

* Divide into subheaders

* Changes after feedback

* cloudwatch: add min time interval section to docs

* docs: json format fix

* cloudwatch: move min time interval section in docs

* cloudwatch: docs fix

* docs: cloudwatch fixes

* docs: s/you are/you're

* docs: Cloudwatch - escapes underscores in tables

* Cache decrypted securejsondata
* Models: Add datasource cache tests

* Added edition and licensing info to usage stats

* add loop to get invdividual packages build time

* run only on master

After toolkit uploads a report successfully, it should only show the 
response data, not the whole request info.

This PR lets the alpha Table component use a Fields configured 
formatter rather than the super hacky ColumnStyle.

* sanitize html after replacing variables

* TextPanel: Always html escape variable values

Adds support for using custom dockerfiles to pre-install image 
renderer plugins.
Updates docs for docker and image rendering.

Fixes #20241

Co-Authored-By: Leonard Gram <leo@xlson.com>

* Reference a few more issues that were fixed

* Remove dashboard entry - it will be added automatically

* Enable theme context mocking in tests

* Expose mockThemeContext from grafana/ui

* Add docs

* Update contribute/style-guides/themes.md

Co-Authored-By: Marcus Olsson <olsson.e.marcus@gmail.com>

* Update packages/grafana-ui/src/themes/ThemeContext.tsx

Co-Authored-By: Marcus Olsson <olsson.e.marcus@gmail.com>

* Update contribute/style-guides/themes.md

Co-Authored-By: Marcus Olsson <olsson.e.marcus@gmail.com>

* Docs update

* Update contribute/style-guides/themes.md

Co-Authored-By: Marcus Olsson <olsson.e.marcus@gmail.com>

* Chore: Remove angular dependency from prometheus datasource

* Build: Supply curl -f when downloading phantomjs
* Build: Verify checksums of downloaded PhantomJS zips

* DevEnv: updates nodejs to 12.x and golang to 1.13

* Updates CI-build and CI-deploy image versions

* DevEnv: updates update repo readme

* DevEnv: updates build container version

* Docs: Document required Go version in developer guide

* refactor to multiple rows

* added name for org user struct

* added name getorgusers

* added user name to tableview

* made test pass

* updated userMocks to user name field

* added missing UsersTable snapshot

* added name on teammembers page, be able to search query for name, login and email

* added the updated snapshots

* conform to same sorting as output form

* conform to previous way of using it

* sort first by login and after by email, as it was before