Remove duplicated notifications

The ones that are used are in index.underscore

COUCHDB-2471
Fix URL paths for Views to be _view not _views

This changes the URL paths for Views within Fauxton for compatibility
with the API URLs.To test, just create/edit a View and confirm the URL
ends with /_view/theViewName not _views/theViewName

Closes COUCHDB-2415
Move Helpers.docs into constants.js

This is a house cleaning ticket. It does a couple of things:
1. Moves the list of URLs stored in Helpers.docs into constants.js
2. Refactors constants to group the (now growing) list into appropriate
groups.

Now there are a lot less hardcoded "magic" strings throughout our
code, yay!

Closes COUCHDB-2474
Fix lookaheadTray

It wasn't showing up on click
Remove checkboxes from viewlist

The viewlist has no bulkdelete. If we want to add it as feature a
good point might be with the new header-controls.
Revert "Fix the flash on doc page route changes"

This reverts commit 84e6d87b2de671fff1ddeaffb02003ef2ffd0b09.
Styleguide update

Now mentions to always use this.$("...") within Backbone Views.
Refactor Nightwatch

This ticket makes a few changes to the way Nightwatch is set up:
1. the main Nightwatch settings (username, password, login URL, key
nightwatch setup file locations) are moved to the settings.json
file to allow them to be defined a single global place and overridden
if need be.
2. it now dynamically determines the list of tests to run based on
content of settings.json.
3. hardcoded username, password & URL moved from helpers.js and
loginToGUI.js and now loaded from settings.json file

Closes COUCHDB-2481
remove nightwatch.json

it keeps beeing changed
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.
Add nightwatch tests to work with Travis and Saucelabs
this has credentials to saucelabs where the origin has been set
to apache/couchdb-fauxton
Refactor Nightwatch

This ticket makes a few changes to the way Nightwatch is set up:
1. the main Nightwatch settings (username, password, login URL, key
nightwatch setup file locations) are moved to the settings.json
file to allow them to be defined a single global place and overridden
if need be.
2. it now dynamically determines the list of tests to run based on
content of settings.json.
3. hardcoded username, password & URL moved from helpers.js and
loginToGUI.js and now loaded from settings.json file

Closes COUCHDB-2481
Add nightwatch tests to work with Travis and Saucelabs

this has credentials to saucelabs where the origin has been set
to apache/couchdb-fauxton
testing with michelle/couchdb-fauxton credentials