Update Tor to 0.2.5.10.

Updates Tor to latest stable version.

Add myself to the maintainer list.
libdwarf: upgrade to the latest version

Also build and export dwarfdump, dwarfdump2 utilities.
nix-exec: bump
rustcMaster: Update from 0.12.0-pre-1166-g0047dbe -> 0.12.0-pre-1336-g394269d

Fixes #5056
Merge pull request #5014 from doublec/tor

Update Tor to 0.2.5.10.
maintainers: Add aherrmann
blitz: New package, version 0.10 (close #5062)

Fast multi-dimensional array library for C++

Blitz++ is a C++ class library for scientific computing which provides
performance on par with Fortran 77/90. It uses template techniques to
achieve high performance. Blitz++ provides dense arrays and vectors,
random number generators, and small vectors (useful for representing
multicomponent or vector fields).
i2pd: 0.2.0 -> 0.3.0
Merge pull request #5065 from bosu/libdwarf-upgrade

libdwarf: upgrade to the latest version
nixUnstable: bump

Bug fixed in b0c5c2a was giving me segfaults...
Revert "libdwarf: upgrade to the latest version"
Merge pull request #5072 from NixOS/revert-5065-libdwarf-upgrade

Revert "libdwarf: upgrade to the latest version"
make zookeeper.nix non-executable
pythonPackages: add docker registry
calibre: update from 2.10.0 to 2.11.0
nix-exec: bump
Merge pull request #5073 from offlinehacker/pkgs/pythonPackages/docker_registry

pythonPackages: add docker registry