Add listener.ssl_certificate_id support to AWS ELB
added missing internal ELB option
Rename aws_db_instance.subnet_group_name to db_subnet_group_name
Don't error out when RDS DB instance disappears
Store aws_db_instance.password in tfstate, change to AttrTypeCreate
rpc: Create the Client/Server
rpc: ResourceProvisioner support on client/server
plugin: Client/Server uses new RPC client/server
main: use new RPC mechanisms
builtin: fix all compilation
fmt
Merge pull request #334 from hashicorp/f-plugin-rpc

Plugin connections multiplexed on one process
providers: fix tests
terraform: Input() asks for variable inputs
terraform: add Input API to ResourceProvider
rpc: Speak new API with UIInput
terraform: ask for input for providers
helper/schema: Input support
providers/*: fix compilation for input
terraform: prefix the Id for configuring providers