HPCC-8955 Document changes to "packagemap validate"

Signed-off-by: JamesDeFabia <James.Defabia@LexisNexis.com>
Merge pull request #4158 from JamesDeFabia/DocumentChanges_to_packagemap_validate8955

HPCC-8955 Document changes to "packagemap validate"

Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #4160 from richardkchapman/roxie-dynamic-opt

HPCC-9028 Roxie not handling OPT flag correctly on dynamically-resolved ...

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>
Merge pull request #4161 from richardkchapman/roxie-write-core

HPCC-9029 Roxie can core if write to file when no workunit

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>
Merge pull request #4159 from richardkchapman/roxie-file-race

HPCC-9027 Roxie file handle errors

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>
HPCC-9021 Non-locking mode for single-node / dev roxies

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>