fwd integration from ethereum master#3

Merged

manicprogrammer merged 4 commits into

manicprogrammer:masterfrom

ethereum:master

Nov 30, 2017

Commits on Nov 28, 2017

core/vm: track 63/64 call gas off stack (#15563)

fjl
authored and
karalabe
committed

Commits on Nov 29, 2017

common: fix hex utils to handle 1 byte address conversions
karalabe
committed
Merge pull request #15577 from karalabe/common-hexconvert-singlebyte
karalabe
authored

Commits on Nov 30, 2017

buld: enable goconst linter (#15566)

zramsay
authored and
fjl
committed