Add support for VPC peering in boto.
Merge branch 'vpc_peering' into develop
Update copyright for VPC peering support.
Add documentation for VPC peering
Fix update method for VpcPeeringConnection class to properly fetch vpc peering connection list for update
Bring VPC peering unit test in conformance with other boto unit tests, so it works in python3
Bring VPC peering unit test in conformance with other boto unit tests, so it works in python3, switch from raw strings to byte strings
Minor whitespace changes
Reorganize imports, remove dupes
Merge branch 'panovodv-develop' into develop.

Add support for VPC connection peering. Fixes #2438.