* grafana/master:
Fixed type issues introduced by adding angular types
Typescript noAny fixes, start of a long journey
Updated code stats collection
Updated path to new script
POC on collecting metrics in ci process
renamed default variables: s -> sm, m -> md, l -> lg
removed gf-form-margin variable and replaced with space- variables where it was used
heatmap: able to hide buckets with zero value #12080
s -> sm, m -> md, l -> lg
heatmap: fix prometheus buckets sorting, closes #15637
s -> sm, m -> md, l -> lg
removed headings-margin-bottom variable
remove kbn test
Added scopedVars argument in datasourceSrv.get in DataPanel
Refactoring of multi-value datasource PR #15812
fixed minor misstake with dashboard padding
removed -margin, replaced with new general variables
added new space variables to margins in AddPanelWidget, add_data_source, dashboard_settings and sidemenu
added new variables for spacing, set margins in _cards with new variables
Make datasource variables multiselect and dashboard repeatable
