Emphasise necessary of patch++ and discuss SQL upgrade scripts.
Removing presumed outofdate section & tidying
merge dev_4_4 -D org -I include -E exclude: PR 346 (Training update april 13 1)
merge dev_4_4 -D org -I include -E exclude: PR 361 (Further corrections to troubleshooting)
merge dev_4_4 -D org -I include -E exclude: PR 362 (fix #10857: how to create a PR that changes the schema)