[diego] - Add require for money gem

Since the 'money' gem is required to run the rspec tests, and it was
moved from the Gemfile into the .gemspec (and so it's no longer
automatically required), the explicit require call is needed and has
been added to the spec_helper
[diego] - Add missing dependencies site generator

Movement sites generated with lib/porpoise/movement_builder.rb didn't
include gems 'money' and 'purpose_country_select' in Gemfile, which are
required by some of the porpoise gem views. We added these gems to the
generated Gemfile.

Conflicts:

	lib/porpoise/movement_builder.rb