Rulesave: User flags header not saved
Noticed that comments-3.2.txt contains no "Names for custom..." -entries, so seems like no headers for custom/user flags are ever saved.
These need to be written as comment entries -> requires 3.2
Attached patch implements this as far as possible; unit class and extras related comments are not saved as they would end to wrong place.
Noticed that comments-3.2.txt contains no "Names for custom..." -entries, so seems like no headers for custom/user flags are ever saved.