style: Remove old FontAwesome references
ProfilePage: Fix the follow_button

We now just disable it if the profile belong to the authenticating user.
Previously, we hid it and never showed it again if the profile of
another user was viewed afterwards. This also fixes the missing
margin_right of the more_button when viewing the authenticating user's
profile.
ProfilePage: Show if the shown user follows the authenticating user
ProfilePage: Remove debugging output

Fallout from 1bb2d37e6f5c8521048c53ce43c75903af308c3c
Merge branch 'master' into lists
ListStatusesPage: Don't throw the details away on page change