Enhanced admin bar patches

[burtadsit]

This integrates deadpan110's admin bar enhancements with a couple of mine.

Patch features:

• Login/Create Account on menu bar for logged out users
• Wrap the menu groups in functions with associated actions for easy modification
• Adds a Community menu that points to bp home theme social networking features
• Adds list all blogs where user plays a role instead of just those created through bp. Uses wpmu get_blogs_of_user()

[burtadsit]

Patch for admin-bar.css

[burtadsit]

Patch for bp-core-adminbar.php

[apeatling]

Thanks, this has now been merged.