BP_Buttons_Group::sort( $buttons )

	public function sort( $buttons ) {
		$sorted = array();

		foreach ( $buttons as $button ) {
			$position = 99;

			if ( isset( $button['position'] ) ) {
				$position = (int) $button['position'];
			}

			// If position is already taken, move to the first next available
			if ( isset( $sorted[ $position ] ) ) {
				$sorted_keys = array_keys( $sorted );

				do {
					$position += 1;
				} while ( in_array( $position, $sorted_keys, true ) );
			}

			$sorted[ $position ] = $button;
		}

		ksort( $sorted );
		return $sorted;
	}