containers: drop vagrant support, noone's maintaining it

rpc: enforce the 128KB request limits on websockets too

* eth: update higest block we know during the sync if a higher was found

* eth: avoid useless sync in fast sync

Allow any vhost for wallet deployed by puppeth

common/compiler: remove "--add-std" arg, deprecated in solidity 0.4.21

travis, Dockerfile, appveyor, build: bump to Go 1.10

* cmd, dashboard, ethdb, vendor: send iostats to dashboard

* ethdb: change names

* ethdb: handle parsing errors

* ethdb: handle iostats syntax error

* ethdb: r -> w

* vm: optimize eq, slt, sgt and iszero + tests

* core/vm: fix error in slt/sgt, found by vmtests. Added testcase

* core/vm: make slt/sgt cleaner

internal/ethapi: make resent gas params optional

* cmd, dashboard: remove custom assets, webpack dev server

* dashboard: yarn commands, small fixes

vendor: bump duktape to get rid of build warning

core: should enqueue the invalids tx anyway

even the pending is empty we shoud enqueue the invalid txs

whisper: final refactoring

* github: config for probot-stale bot

* github: use stale label, instead of wontfix

* core/vm, crypto/bn256: switch over to cloudflare library

* crypto/bn256: unmarshal constraint + start pure go impl

* crypto/bn256: combo cloudflare and google lib

* travis: drop 386 test job

cmd/evm, core/vm, internal/ethapi: don't disable call gas metering

* utils: fix #16138 by checking if vhosts flag is set

* utils,node: fix defaults for rpcvhosts

* node,utils: address review concerns

whisper: refactoring go-routines workflow

Move the call mailServer.Init() down (to the bottom of the function) because if the function initialize() completes successfully, then it will be followed by mailServer.Close() in shutdown(). The workflow of the corresponding goroutines is clearer now.