Use HTTPClient to download avatar
Use HTTPClient to download avatar

also make updateAvatar public so we can call it from update_ostatus_profile.php

faulteh/gnu-social,charnimda/lgbtpzn-social,eXcomm/gnu-social,eXcomm/gnu-social,faulteh/gnu-social,furtherfield/gnu-social,eXcomm/gnu-social,bankonme/gnu-social,Piratas/tortuga,studio666/gnu-social,Piratas/tortuga,foocorp/gnu-social,chimo/social,foocorp/gnu-social,faulteh/gnu-social,studio666/gnu-social,studio666/gnu-social,furtherfield/gnu-social,Piratas/tortuga,bankonme/gnu-social,bankonme/gnu-social,faulteh/gnu-social,Piratas/tortuga,chimo/social,furtherfield/gnu-social,foocorp/gnu-social,chimo/social,eXcomm/gnu-social,charnimda/lgbtpzn-social,charnimda/lgbtpzn-social,studio666/gnu-social,bankonme/gnu-social,furtherfield/gnu-social