new items to schematics.
- AUTHORS, components/INFO, components/antenna.lib: copied antenna symbol
by Rene Harder from gta02-core
- modules/meander.fpd: changed pin "numbers" from "GND" and "FEED" to
more conventional "1" and "2"
- wpan-atrf.pro, atrf.sch: added crystal and antenna to schematics
- BOOKSHELF: data sheet of NDK NX3225SA 16 MHz, 15 ppm, 8 pF crystal
- AUTHORS, components/INFO, components/xtal-4.lib: copied Alvaro's
tas4025a.lib over from gta02-core and gave it a more general name
- AUTHORS, modules/INFO, modules/xtal-4.fpd: added footprint for
four-padded SMT crystals
