Correct misleading template guide Ref example

Currently the template guide example of return value for reference shows an
arbitrary string, this patch repalces it with an appropriate return.

Change-Id: Iacea741456640e3cd6ce72c6a616c87ae79334bb
Closes-bug: #1226798
Document vpc properties

AWS::EC2::VPC

Change-Id: I2ee6adfa9639f2e99636f0097dff904facd1593d
Closes-bug: #1224159
Document subnet properties

AWS::EC2::Subnet

Change-Id: I5270cc5203dbb13538413db27640609e8b113f19
Closes-bug: #1224151
Imported Translations from Transifex

Change-Id: Ie945de0849cbcadd0b1f9675056c845a080caee8
Merge "Document subnet properties"
Merge "Document vpc properties"
Merge "Imported Translations from Transifex"
Merge "Correct misleading template guide Ref example"
WIP