Change primaryAggregation to crossSeriesReducer in Stackdriver

Fix golint issues

Explore: query field should not propagate non-text change

fixed sqlite issue introduced by #14709

add support for defining additonal database connection string args

Tweaked panel option group styles

Remove alpha from Gauge panel

Update <title> when navModel is changed

Azure Monitor: move files into grafana

- after mounting with an initial value, the onChange of a query field is triggered
- even though the slate documents are not the same, their text values are identical, hence the change propagation is useless
- added check to propagate text change only when text has actually changed

Updated Explore query styles to align them to other query editors

Fixed issue with explore changeTime redux action not being hooked up

Propagate event to onChange prop in Switch component

Tooltip restyling

and adds tab as well as enter key for autocomplete

Automatically scale font size on Gauge value