Merge pull request ethereum#3007 from karalabe/release/1.4

Geth 1.4.12: Shanghai with love

Merge pull request ethereum#2916 from ethereum/release/1.4

Release/1.4

Merge pull request ethereum#2827 from ethereum/release/1.4

Geth 1.4.10 "Return of the ETH"

Merge pull request ethereum#2754 from ethereum/release/1.4

Geth 1.4.9 "The network strikes back"

Merge pull request ethereum#2735 from ethereum/release/1.4

Geth 1.4.8 "DAO Wars"

Merge pull request ethereum#2700 from ethereum/release/1.4

Geth 1.4.7 "Colourise"

Merge branch 'release/1.4'

Merge pull request ethereum#2606 from ethereum/release/1.4

VERSION, cmd/geth: bumped version 1.4.5

Merge branch 'release/1.4'

VERSION, cmd/geth: bumped version 1.4.3