Bug fixes

Updating drupal code to version 8.6.13
Change to H5P removing title metatag

Changes since 7.x-1.9:

Maintenance release with fixes from @maurizio.ganovelli and @volkswagenchick (and apologies to reviewers @alonaoneill and @chipway that I managed to not include them in the commit messages!)
#2997832: README missing

Renew notification for trial accounts
Fix SFW update db issues
Add form validation notices
Improved JS protection
Bug fixes and other minor improvements

Removes unnecessary overrides and unsets the core and admin toolbar CSS files