* Check mode fixes for ec2_vpc_net module
Returns VPC object information
Detects state change for VPC, DHCP options, and tags in check mode
* Early exit on VPC creation in check mode
* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing error exception handling for python. Does not need to be compatible with Python2.4 b/c boto is Python 2.6 and above.
* Fixing compile time errors IRT error exception handling for Python 3.5.
This does not need to be compatible with Python2.4 b/c Boto is Python 2.6 and above.