Add favorites_id to user.artists association

The favorite association primary key is now accessible when
calling the artists favorited by user

Change phone_number validation message to specify number must
include +1 followed by 10 digit number
Add users artists instance variable to favorites controller

@artists is now sent to client to render favorites partial
if session exists

Correct destroy acction - previously missing .destroy method on
Favorite association record find
Fix error message users#create

errors incorrectly called on model instead of @users
Add favorites menu partial if session exists

Partial is rendered with @artists, which is iterated
through to access each artists name, image_url, and favorite id
Add favorites partial

Partial iterates through users's artists if session exists
to build favorites menu
Unstage config/secrets.yml added to .gitginore
Add image url src to favorites menu partial

On artist add to favorites the image used in the
favorites menu is sent to rails to be saved
in the artist record
Add search_with_faves style for existing users

If user has favorites, the search bar will now decrease in
size and move to the left to accomodate favorites menu
Add image_url_small to favorites controller params

used to save image url to artist record on fav create
Add image fetch and first or create to bulk artist fetch

image_url will now be saved to the artist record when all artists
are fetched from seatgeek to seed database. Records will now not
be destroyed if already exist
Add existing users view functionaility

create favorites partial to render favorites menu
create with_favorites separate view for returning users
remove uneccessary css search_box_left class from index
add logo partial from index - reused in with_favorites view
Add logout functionality

if user is registered he/she will see a logout button on favorites
menu instead of a notify button. Clicking notify button will
destroy the user session.

Notify is uncessary if user is registered because favorite artists
are saved in the database as they are entered

Add css style for logout button inherit from notify button

Need to implement a flash notice that informs user of this autosave
Add sessions login partial

Remove previous user login/logout/signup partials
dd partial views

Separate favorites menu and individual artists in favorites menu
Partials can now be included/appended in different scenarios:
-user login
-existing user

Add css styles for new partials - login link, search box when fav menu exists
Add user login/logout functionality

-ajax get for user login partial
-ajax post for user login submit
-session create render favorites menu partial
-session new render login form partial
Merge pull request #181 from spring-peepers-2014/add-feature-existing-users

Add existing user features 
- login/logout
- render partial of existing favorites
Merge pull request #182 from spring-peepers-2014/Geocoder

Reimplement geocoder gem
Update seed artist fetch start

Re-start process at 24946
Add id to login button
- Login submit button now has an id of #login_button
Add style to login button
- Login button is styled like the signup button