Document vpc properties

AWS::EC2::VPC

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

AWS::EC2::Subnet

Change-Id: I5270cc5203dbb13538413db27640609e8b113f19
Closes-bug: #1224151
Document route table properties

AWS::EC2::RouteTable
AWS::EC2::SubnetRouteTableAssocation

Change-Id: I8e9651495e9f03a50fd5a4636fffd8f7c2307669
Closes-bug: #1224147
Merge "Document route table properties"
Imported Translations from Transifex

Change-Id: Ie945de0849cbcadd0b1f9675056c845a080caee8
Merge "Document subnet properties"
Merge "Document vpc properties"
Merge "Imported Translations from Transifex"