Adding user's social profile addresses feature (Bug #605749)

- Added ability to self import and import via admin the socialprofile
fields, whether the leap2a file is made with this patch or with older
mahara

- Note: the msn messaging profile will not import into the new system
as it is obsolete

Change-Id: I858acc6c71af61c689e6760991dc00f983b913ac
Signed-off-by: Gregor Anzelj <gregor.anzelj@gmail.com>
Merge "Adding user's social profile addresses feature (Bug #605749)"