Merge pull request #30 from sai-sriram-mahavadi/sw-refactor

Sw refactor - Refactoring for Switch module
Merge pull request #31 from sai-sriram-mahavadi/sw-refactor

Sw refactor - Refactoring for Switch module
Merge pull request #32 from sai-sriram-mahavadi/sw-refactor

Sw refactor - Refactoring for Switch module and Packstack Module
New changes
new commit
Cobbler no dhcp issue resolved
cobbler tested code
kickstart error fixed
FI modulue updated for overwriting existing configuration. (Part of Error handling)