Use Python 3.x compatible octal literals

Python 3.x deprecated octal literals in the form 0755.
Use the Python 2.x compatible version 0o755 instead.

Change-Id: I90ea601847752ae04d4e403ffa16a537efe442e2
Improve detection of config errors in nvp.ini file

Detect if default params specified in the config file match
what it is returned by NVP.

Fixes bug #1190032

Change-Id: I8084dc938726e050ba82410cbc02a161cc0aa17f
Merge "Use Python 3.x compatible octal literals"
Merge "Improve detection of config errors in nvp.ini file"
Adding SVI support to the Cisco Nexus plugin

Adding support to create vlan SVI gateways on Cisco Nexus hardware switches.

blueprint cisco-plugin-svi

Change-Id: I88516f3e67d51d213fa60f6ec9aee23f9ca4be97