Add missing items to Gopkg.lock

Fix variable interpolation examples in whats new in 5.1 docs

[skip ci]

fix dark/light theme date selector styling in timepicker control

[skip ci]

dont shadow format passed in as function parameter in replace function in templatesrv

format is specified

[skip ci]

fix to match table column name and order

increase length of auth_id column in user_auth table

scroll: fix scrolling on mobile Chrome

* refactoring: metrics package now follows new service interface & registration

* fix: minor fix, make sure metrics service is imported, by grafana-server

Revert "Opportunities to unindent code (unindent)"

[skip ci]

dashboard: show save as button if user has edit permission

This will show the "Save As..." button in dashboard settings page if the user 
has edit permissions (org role admin/editor or viewers_can_edit enabled) 
and has at least edit permission in any folder.

Opportunities to unindent code (unindent)

[skip ci]

Histogram: fix invisible highest value bucket

* wip: start on refactoring settings

* settings: progress on settings refactor

* refactor: progress on settings refactoring

* fix: fixed failing test

* settings: moved smtp settings from global to instance