[openstreetmap-website] Vagrant fix provision script + fix locale errors (#1122)

[Victor]

`bundle install` was failing because of missing ruby2.0.
And `rake db:migrate` was also failing subsequently.

The only locale related error remaining is:
```
==> default: Generating locales...
==> default:   en_GB.UTF-8... 
==> default: done
==> default: Generation complete.
==> default: /tmp/vagrant-shell: line 7: warning: setlocale: LC_ALL: cannot change locale (en_GB.utf8)
```
It seems to be `update-locale LANG=en_GB.utf8 LC_ALL=en_GB.utf8`
You can view, comment on, or merge this pull request online at:

  https://github.com/openstreetmap/openstreetmap-website/pull/1122

-- Commit Summary --

  * Update vagrant provision script with current install commands
  * Vagrant: Fix locale setup problem

-- File Changes --

    M script/vagrant/setup/provision.sh (14)

-- Patch Links --

https://github.com/openstreetmap/openstreetmap-website/pull/1122.patch
https://github.com/openstreetmap/openstreetmap-website/pull/1122.diff

---
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/1122
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