Update .gitignore

adding ignore for swap files generated by vim
1.Added the setup and configuration files for 3750,2960,Terminsl Server(TS) and N9k
2.The Switch_setup.py calls the individual switch configurators.
Merge pull request #9 from sudarsku/proto

1.Added the setup and configuration files for 3750,2960,Terminal Server(...
Merge remote-tracking branch 'upstream/proto' into proto