The module now passes with zero warnings from coder-review in 'Severity Minor' mode

Issue #1355066 by devuo: Fix characters & from being output as & if they come pre-encoded as & from substituion.

Issue #1355066 by devuo: Fix Characters like ' and & from being output as ' and & if they come from a substitution.

Added a README.txt, Changed $new to $children_operations for more readability, and fixed a few typos in the module description.

Added the Comment ID to the comment by merlinofchaos where he cites the use of page_manager_variant_operations_alter() by panels everywhere.

Removed trailing spaces and some typos and now panels_breadcrumbs passes successfuly Code Review by Coder Module.

Added a few more comments to the code, and also added a checkbox that (de)activates breadcrumbs for a given variant.