Updated Drupal to 8.6. This goes with the following updates because it's possible...
[yaffs-website] / web / core / lib / Drupal / Component / Diff /
drwxr-xr-x   ..
-rw-r--r-- 4195 Diff.php
-rw-r--r-- 4490 DiffFormatter.php
drwxr-xr-x - Engine
-rw-r--r-- 18002 LICENSE.txt
-rw-r--r-- 1612 MappedDiff.php
-rw-r--r-- 365 README.txt
-rw-r--r-- 613 TESTING.txt
-rw-r--r-- 2026 WordLevelDiff.php
-rw-r--r-- 335 composer.json