Rearrange the $scopes a bit such that refresh of the overview page happens when a new address is imported or created.
Refresh the overview asset types chart in ng-init, to remove the long delay between page render and the chart appearing.
Remove some of the asset type chart content when there are no addresses in the wallet.
Merge pull request #214 from curtislacy/Overview-Refresh

Rearrange the $scopes a bit such that refresh of the overview page happe...