* Remove Bitcoin Gitian keys
* Update gitian-build.sh and gitian-building.md
gitian-building.md referenced "br0" but "lxcbr0" was used in the script.
gitian-build.sh used 10.0.2.2 as IP for the bridge but this conflicts with
VirtualBox networking.
* Add gitian key for codablock
https://keybase.io/codablock
* Add gitian key for schinzelh
https://keybase.io/schinzelh
* Add gitian key for gladcow
https://keybase.io/gladcow
* Add gitian key for nmarley
https://keybase.io/nmarley
* Add gitian key for udjinm6
https://keybase.io/UdjinM6
* Add EOL chars
