I have also updated the dependencies for bitcoin:
* qt4 is updated to qt5
* miniupnpc 1 is updated to miniupnpc 2
* zeromq dependency has been added to enable ZeroMQ support.
* pkgs: refactor needless quoting of homepage meta attribute
A lot of packages are needlessly quoting the homepage meta attribute
(about 1400, 22%), this commit refactors all of those instances.
* pkgs: Fixing some links that were wrongfully unquoted in the previous
commit
* Fixed some instances
Here, I present a new level of hierarchy on Nixpkgs: the Altcoins.
The idea is to put a single cryptocurrency per file, and build them
using expressions like altcoins.bitcoin. I believe this ordering is
clearer and more maintainable that the current one.