Time regions support in graph panel

Explore: Don't suggest term items when text follows

[skip ci]

Team preferences support

filter out alpha plugins in plugins api 

elasticsearch: do not set a placeholder to index name, if it's already specified

[skip ci]

[skip ci]

[skip ci]

Fix switching from es raw document metric breaks query editor

Explore: Fix table pagination styles

Explore: Dont set datasource in state if navigated away

fixed singlestat guage ceneterd dot rendering issue

Upgrades the go-macaroon package

- get rid of drop shadow
- get rid of top border
- add min height for better no-data placement
- add margins