this avoids rebuilding those unless its needed

it was a bad idea since it messes up symlinks

- Added option -i, to install a given build target after successful build.

- Parse all APKBUILDs and use awk to calculate a dependency graph. Then
  build the package and use -i to install the needed dependency.

- Uninstall all build dependencies after package is built (unless -i given)

- Automatically add binutils gcc make patch uclibc-dev as deps

- set boot prompt timeout to 2 sec
- remove unused boot parameter
- move test.gz to /boot subdir

try also mount modloop during boot and run a second pass hardware
detect.

those should probably go to a separate package but I put them here for now

and compress man and info files