apk_add: display update/install message
added rsync fetch test
renamed add_package to add_unpacked
removed dead code
added chomp(); fix bug that prevented packages to be unpacked at all
use the unpacked DEPEND instead of reading .apk file twice
use hash table for faster search for md5 sums
basic structure on what needs to be done in apk_add
added todo comment
moved recursive fetching/installing into add.c