[dev_setup] Update bundler to 1.2.1

Change-Id: Ia487840a9f3b9b25497643c7f00adaed18cefb50
Bump stager for assets precompilation

- Add node runtime to ruby path for JavaScript compilation

stager shortlog 206b107..e39a094
Jennifer Hickey and Matthew Kocher (1):
  Bump vcap-staging

Maria Shaldybina (1):
  Assets precompilation for rails3 and fixes

Pieter Noordhuis (1):
  Bump vcap-staging

Change-Id: I5610c7364c10fc96fbf13a97ab2dd5624838b203
add service timeout for echo gateway

Change-Id: I97d16d8a8ab31034a0a48a38051f58e95a2e9eb6
Merge "Bump stager for assets precompilation"
Upgrade chef to avoid break by moneta 0.7.1

Moneta was upgraded from 0.6 to 0.7, which caused some bug in
chef 10.12.0, this change upgrades chef to latest 10.16.4.

Change-Id: I4f54ae3d1c1e99f48557b5b3a08628027a7d2a85
Merge "[dev_setup] Update bundler to 1.2.1"
keep blobstore client to be 0.4.0

dev-setup was broken by blobstore_client upgrade

Change-Id: Ic6e9cae766c40577e1a44a3be037d4ae0a7db4ab