LEARNER-2485
1) Joined Date is shown in bold and there is no line below to separate
it from the next section.
2) The bio shows up below the certificates.
3) Switching to 'limited profile' does not correctly hide the language,
location and joined date fields.
LEARNER-1859
Added fields to add social links to the user account settings file.
Added icons to the user profile when these links are set, only shown
when users show their entire profile. Added jasmine tests for account
settings and learner profile pages. Added python unit tests to test
validation on the user account.
LEARNER-1857
This story constitutes a large change to the UX of the learner profile.
Some specific changes include adding a flexible learner profile card, limiting the bio entry to only 300 characters and assuring that the page is responsive.
