Terms 'Social' and 'IM' used interchangeably in address book

[Brendan Donegan]

Steps to reproduce:

1. Open Contacts
2. Create a new contact by swiping from the bottom edge
3. Tap on Add Field
4. Observe that there is an option called Social, tap on it
5. A field is added titled 'IM' with the text 'Enter a social alias' and the type 'Skype'
6. Enter something here and a First and Last name for the contact
7. From the contact list tap on the new contact and tap on the view contact button
8. Observe that there is a field with the name 'Social'
9. Tap on the 'Edit' icon in the top-right corner
10. Observe that there is a field with the name 'IM'

Expected result:

In steps 4,5,8 and 10 the term used should be the same

Actual result:

The term is different in 4 and 8 vs 5 and 10

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: address-book-app 0.2+15.04.20150120-0ubuntu1
Uname: Linux 3.4.67 armv7l
ApportVersion: 2.15.1-0ubuntu2
Architecture: armhf
Date: Wed Jan 21 15:45:36 2015
InstallationDate: Installed on 2015-01-21 (0 days ago)
InstallationMedia: Ubuntu Vivid Vervet (development branch) - armhf (20150121-020205)
SourcePackage: address-book-app
UpgradeStatus: No upgrade log present (probably fresh install)