Merge pull request #2497 from karalabe/version-contract-3

accounts/abi/bind/backend.go

cmd/geth/main.go

cmd/utils/flags.go

eth/api.go

eth/backend.go

eth/bind.go

node/node.go

node/service.go

release/contract.go

release/contract.sol

release/contract_test.go

release/generator.go

release/release.go