Shoestrap 3 - use a container in pre_footer

functions.php

<?php

function remove_pre_footer_markup() {
	$action = 'shoestrap_pre_footer';
	remove_action( $action, 'shoestrap_ewa_'.$action, 99 );
}
add_action( 'wp', 'remove_pre_footer_markup' );

function add_pre_footer_markup() {
	global $ss_framework;
	$action = 'shoestrap_pre_footer';
	$num    = intval( shoestrap_getVariable( $action . '_nr' ) );

	if ( shoestrap_getVariable( $action . '_check' ) == '1' ) {
		echo $ss_framework->open_row( 'div', null, $action, null );
		echo '<div class="container">';
			for ( $i = 1; $i < ( $num + 1 ); $i++ ) {
				echo '<div class="'. $ss_framework->column_classes( array( 'medium' => 12 / $num ), null ) .'">';
					dynamic_sidebar( $action . '_' . $i );
				echo '</div>';
			}
		echo '</div>';
		echo $ss_framework->close_row( 'div' );
	} elseif ( shoestrap_getVariable( $action . '_check' ) == '2' ) {
		echo apply_filters( 'the_content', shoestrap_getVariable( $action . '_custom_content' ) );
	}
}
add_action( 'shoestrap_pre_footer', 'add_pre_footer_markup' );