Header file chagnes for VLAN interface
Merge pull request #12 from praveenkv/master

Header file changes for VLAN interface
Taking care of pull_len while doing calculating udp source port for MPLSoUDP incase of mirror.
Merge pull request #13 from divakardhar/master

Taking care of pull_len while doing calculating udp source port for MPLS...
- Support for vlan interfaces in vrouter