Merge pull request GoogleCloudPlatform#21 from viglesiasce/fix-projec…

…t-missing

Add project variable where needed

Merge pull request GoogleCloudPlatform#15 from danisla/add-name-prefix

Add name variable for resource prefixes. Import of multi network example.

fix typo in variables.tf

added southamerica-east1

removed fixed IPs

fix to incorrect tags on the nat instance

added nginx for http healthcheck and autohealing

Merge pull request GoogleCloudPlatform#10 from danisla/ha-example

Import of high availability example