Provide an App Detail view

[lkngtn]

Is your feature request related to a problem? Please describe.

Currently the application detail view is surfaced in the client via the App Center, but this doesn't necessarily make sense in the context of Apiary which is User rather than Organization centric. When a user views apps on Apiary, they may want to see the application details but we don't want to make them navigate into any specific organization.

Describe the solution you'd like
It would be great to provide an app detail view directly in apiary, perhaps we can essentially use the same view that is provided in the App Center of the client but outside of the client itself.

We could then add a few additional summary stats related to installs, app score, and app mining payouts.

We could also include contextual discussions if we implement #77

Additional context
This feature would be a good way to improve application discovery

[onbjerg]

We could also have cool things like installs over time, version adoption over time (do people actually update their apps?) etc.