ppc: travis/vet fixes

golint fixes

Conflicts:
	kernel.go

golint fixes

Conflicts:
	kernel.go
	ppc.go

.travis.yml vet update

.travis.yml vet update

Conflicts:
	.travis.yml

travis fixes

travis fixes

travis fixes

travis fixes

travis fixes

travis fixes

travis fixes
ppc: AdjustedTime fixes, needed to add a timeSource parameter to two Conformal methods (maybeAcceptBlock, processOrphans), needs validation

Conflicts:
	accept.go
	kernel.go
	ppcutil.go