Add multi_json as runtime dependency.
Add `vendor push` command.
Cucumber feature for `vendor push`.
Bump timeouts to ridiculous amounts for Travis.
Change require to autoload for multi_json
(cherry picked from commit bc2af1c38bf32f5fb5c8448b437f674a30fc43cb)
Revert "Add multi_json as runtime dependency."

This reverts commit ef39aa8e28e6f7bd6b72beb0f333e3e088881a37.
Do a per-module push rather than global one.
Merge remote-tracking branch 'origin/develop' into feature/push-command
Freeze aruba at old (working) version.

Would be good to review the changes introduced in 0.5.2. Maybe
there's something useful for us.
One command to push them all.
Push all the tags!
Small fixes.
Merge pull request #8 from 3ofcoins/feature/push-command

Feature: vendor push