Beta [DigitalPoint] Profiles 1.0.0 beta 4

• Username @ prefix is slightly smaller (85%). Not stolen from @Matt C.
• inline-block applied to usernames and display names (prevents wrapping between @ prefix and username)

Fixed issue where username wasn't reduced in size if there's a display name set and there's no profile banner.

Fixes username wrap issue on tooltip when there's both a username and a display name and there's no profile banner image.

Fixed issue where display name couldn't be blank.