accounts, cmd, internal, mobile, node: canonical account URLs

accounts/accounts.go

accounts/keystore/account_cache.go

accounts/keystore/account_cache_test.go

accounts/keystore/key.go

accounts/keystore/keystore.go

accounts/keystore/keystore_plain_test.go

accounts/keystore/keystore_test.go

accounts/keystore/keystore_wallet.go

accounts/keystore/presale.go

accounts/manager.go

accounts/url.go

accounts/usbwallet/ledger_hub.go

accounts/usbwallet/ledger_wallet.go

cmd/geth/accountcmd.go

cmd/geth/accountcmd_test.go

cmd/swarm/main.go

internal/ethapi/api.go

mobile/accounts.go

node/config.go