add_theme_support( 'buddypress' )

Hi gang,

In order to ensure that BP 1.7's theme compat does not run any of its scripts in Infinity, Infinity should add:
`add_theme_support( 'buddypress' )`

This pull request addresses that.

For more info, view this article:
https://bpdevel.wordpress.com/2013/02/25/bp-theme-authors-make-sure-your-theme-registers-buddypress-support/

Let me know if you guys have any Qs.