and no longer store version files within this repo

and change the meaning

There is no SITE anymore

if ./opkg-keys/gluon-opkg-key(.pub) exists, copy it to build directory

if there is no key in ./opkg-keys/, then copy the one from build directory after buildprocess

set $VERSION and $TARGETS only if the repos are checked out already
copy all modules out of src/output/modules/ and not only gluon-ffho-${VERSION}/

improve BROKEN, if(BROKEN==1){export BROKEN}else{unset BROKEN}
add NO_FAKETIME, to build without faketime
add variables vor faktime to docker-build.sh
some little improvements

This reverts commit a2f44220.

Instead of using the upstream's wrapper script use the direct mechanism
which does not alter return values. This closes #30

In order to make this work I removed the "eval" calls as they were only
introducing other environment variable which can be accomplished via
other (simpler?) means as well.

see also issue #30