mssql: pass timerange for template variable queries

Improve usability of forms, better showing disabled metrics

Add aws ec2 api metrics for cloudwatch

provide time range to angular query controllers

* Use gray-3 instead of gray-2 for text-color-weak in "light" theme

Fixed issues with plus button in threshold and panel option header

support three letter hex color strings

Fixed issues with plus button in threshold and panel option header, and current state in viz picker, fixes #15329

mark grafana-ui package with Apache license

POC - Enable js defined theme to be used in SASS

IPA v4.6.4 introduced a fix that does not allow empty attributes
to be sent in a search request. This fix only adds attributes to
the request if they are mapped in the ldap toml file.

fixed explore width-0 issue

Auth token package and middleware refactoring

Dashboard react page

Unexpected semver comparison behavior #15280

support json format templating

Remove react-sizeme and use AutoSizer