allowing a hierarchy of caches, by using only one directory for each cache,
and by putting only one command in the PATH.
- scripts/dsv: new and improved data sheet viewer (successor of gta02-core's
dsv)
- Makefile: added "dsv" target to update the bookshelf
- ds/INFO, components/INFO, modules/INFO: ds/INFO moved to BOOKSHELF
- components/INFO, modules/INFO: renamed "D" tag to "N", for consistency with
BOOKSHELF
- BOOKSHELF: changed "stdpass" URL to the actual PDF
