* openjdk: update to tag 172
* openjdk: update to tag 174
* valac: update from 0.36.3 to 0.36.4
* squid: fix building with unified headers
* krb5: fix building with unified headers
* tor: update from 0.3.0.8 to 0.3.0.9
- Avoid linking to libgnutls.
- Avoid linking to libsasl.
- Avoid linking to libdb2.
- Fix man page locations.
- Make libnettle and libltdl dependencies.