Allow selecting metric from Insert Metric

Change-Id: I99e0539cab2749a8aeabc0a13015889ff45834f7
Focus expression after selection from dropdown

Change-Id: Id7f67e558e3611ab4c7188cc428c342d8d3e67db
Add back consoles link.

Goes in index.html in consoles or else user data, if present.

Change-Id: I5303d30aa24ca0c20d2e0f49121e04a260b9c4f4
Merge branch 'master' into exp/storage-ng
Fix targetpool_test.go.

Change-Id: I7615d29feb25fd161cf04fb728d137100c14f3c0