Build Depends v.s. transitive package depends

[volca02]

There's probably a problem with fastrpc packaging, causing transitive dependency on fastrpc not to be versioned in alignment with dev package. I.e. the addition of unMarshallPartial not being a well enough reason to package the binaries with new enough version of fastrpc (in this case, the deb package was built around libfastrpc-dev 8.0.13, but ran with fastrpc 8.0.0, leading to abortions while running due to missing symbols)