b=20226 rename osd to osd-ldiskfs i=rread
b=16098 Add URL for GPLv2 license in copyright headers
b=16098 change CFS license headers to Sun headers
Branch HEAD b=15552 i=nikita.danilov i=adilger - Igif support for the case when of HEAD based server runs on old disk format
- make HEAD from b_post_cmd3