Since the geolocation and music-control changes we need eldbus-codegen to
generate some files. Not all setups have this in their normal $PATH so let
allow these setups to set the correct path during configure. This allows our
Jenkins setup as well as others to work again.
elocation headers conflict with these, so ensure that our headers get picked up first
#glimaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
some setups have stricter dep chain following during make which causes
build errors if the chain does not explicitly have the generated files
as a dep of the files for which they are included
It still ahd some bits from the original name (geoclue2). I tried squeeze
as much renaming as possible in the earlier commits but these done here
would have broken the code so I do the rest all in one go here.