bump version of deployer gem to use 0.7.0 version of aws cpi client gem

Change-Id: Iea8d4401e5a89b4db50ac7a4c63847cfdfa34cba
update director gem to use 0.7.0 of aws cpi gem

Change-Id: I74cba7464cee0055c7a7fb6b053f03ad2b13ee6c
template helper extracts default values with awareness to structure of spec

Change-Id: If369738a8892b23b19d4f9bd41a607693f90b823
bump common to 0.5.5

Change-Id: Iade56e5fe608d856c149559e770678a1fade6c15
agent using fixed common gem

Change-Id: I8b9fa2a7105d524901df84abf00a91d1e70e2725
regression in delete_stemcell, block_device_mappings returns a hash not an object

Change-Id: I78512ee055eb6f7403498efc0198dac0191a2e66
deployer: add aws properties to B::D::Specification for aws_registry

Change-Id: I62486b4911ed3f8fbef7cacfe406a7c5fe3213d6
Up default timeout to 10 minutes from 5 minutes, aws is slower than vsphere

also remove unneeded unless

Change-Id: Iff3fc83cdef2bab24fd11396434b42446c2817cb