Issue #1701638 by stuart.crouch, markisatacomputer: checked URL aliases that doesn't use the menu structure

* Issue #1597422 by mechler, gippy: Fixed paths that are generated by the pathauto module don't render as links in the breadcrumb..
* Corrected ventral warnings.

Issue #1597422 by mechler: Fixed paths that are generated by the *pathauto* module don't render as links in the breadcrumb.

- Removed previously added option "Paths alias to be excluded while generating the breadcrumb's segments", that was not promoting semantic and consistent URLs.
- Added an option for including / excluding invalid path alias.
- Added JavaScript for improving UX of the administration form.
- Improved and updated README.txt.

- Added generic translation template.
- Improved documentation.