[theme: twenty eleven] featured thumbnails and summary issues with 4.2

Hi, today i upgrade wordpress to 4.2 and twenty eleven to 2.1, all ok except the twenty eleven with my custom thumbnails and summary disappear and only the title is displayed (the issue is in content.php when i swap the code).
Probably some incompatibilities.

Here the code i used till now:

*** Function.php
added
// This sets the dimensions for the thumbnails displayed on the homepage
add_image_size(‘excerpt-thumbnail’, 140, 140, true);

*** Content.php (here the issue)
swapped
<?php if ( is_search() ) : // Only display Excerpts for Search ?>
<div class=”entry-summary”>
<?php the_excerpt(); ?>
with
<?php if ( is_search() | is_home() ) : // Edit this to show excerpts in other areas of the theme?>
<div class=”entry-summary”>
<!– This adds the post thumbnail/featured image –>
<div class=”excerpt-thumb”>” title=”<?php printf( esc_attr__( ‘Permalink to %s’, ‘twentyeleven’ ), the_title_attribute( echo=0′ ) ); ?>” rel=”bookmark”>
<?php the_post_thumbnail(‘excerpt-thumbnail’, ‘class=alignleft’); ?></div>
<?php the_excerpt(); ?>

Can someone please fix the code to work with wp 4.2?

Thanks a lot.