Merge pull request ethereum#3259 from obscuren/version-1-5-0

utils: stable 1.5.0

Merge pull request ethereum#3252 from obscuren/release/1.4

1.4 HF

Merge pull request ethereum#3144 from ethereum/release/1.4

Release/1.4.18 to master

Merge pull request ethereum#3116 from fjl/release/1.4

Backport TxPool limits to release/1.4

[release/1.4.16] cmd/geth, VERSION: bumped version to 1.4.16

Merge pull request ethereum#3075 from ethereum/release/1.4

Geth 1.4.15: Come at me Bro

Merge pull request ethereum#3055 from karalabe/release/1.4

Geth 1.4.14: What else should we rewrite?

Merge pull request ethereum#3039 from ethereum/release/1.4

Geth 1.4.13: Into the woods

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