Fix lookaheadTray test

`baseUrl` was undefined
Update Nightwatch README file
verifyinstall addon whitespace and style fixes

Just a housekeeping ticket.
Fix broken testsuite

Remove shared url for db and Fauxton
Move db-url-construction to the settings.json

This enables us additionally to have the couch running on differnt
host to fauxton.
Componentize footer

Take the elements that were all baked into all-docs-list
and inject them into the all-docs-list. This enables us to have
a separate footer component in the layout which can be initialized
without the all-docs-list viewobject.

This enables us to remove the `position: fixed` from the footer
and use `position: absolute`. Without having the element
`position: fixed;` we do not need to calculate it's width via JS
and can apply a css based pane layout.

Part of: COUCHDB-2471