And this
define ('WPCF7_LOAD_JS', false);
is in your wp-config.php?
If so, you might check as wp-config.php can be located in one of two places. Top level of your WordPress install and one directory above that.
I put it right above the "happy blogging line"
.
.
.
/**
* Contact Form 7 JavaScript causing issues with jQuery and form submission
*/
define ('WPCF7_LOAD_JS', false);
/* That's all, stop editing! Happy blogging. */
.
.
.