Hide add aggregation button in metrics editor

* sync favorited star color

* tweak color classes

add reference to our buildpack

Allow http health checks.

Allow the AWS elb to run the health check over http
when https is enabled.
Make disabling forces TLS possible.
Simplify nginx config handling on beanstalk by providing
the config directly rather than editing persistent files in place
using sed.

More metadata consolidation

Merge release-0.24.1 to master

Improve the error message when using wrong ssh tunnel host

Or when running the tests on a computer thats not running sshd

Streaming response

Allow mounting at non-root path, e.x. foo.com/metabase/, v2

Fix Issue 5073

Merge release-0.24.0 to master

When checking for a new install on MariaDB we need to upcase the
tablename when checking for the presence of the liquibase tables.

Fix README links