Vagrant, CI and Postman additions

A number of additions to improve development:

- Adds VagrantFile to build a development VM
- Postman file to debug SciPass API
- Tavis and Coverage File setup to allow CI 
- Changed Makeflie so "make test" works on both RH and Ubuntu

It also creates a SciPass_mininet.xml file that could integrate with a local mininet. Right now it only has a mininet appropriate  The ultimate goal would be the ability to run functional tests against a mininet instance in CI. Testing against different switches and commercial controllers would still need to be done by hand 

Readme Travis and Coveralls badges point to builds associated with my account. This probably needs to be changed but there isn't a GlobalNOC CI I can point to.

Ongoing work in my fork (https://github.com/chrissmall22/SciPass/tree/hp-van) is to get SciPass to work with the the HP VAN controller and ODL. There is also SDN controller python bindings hp-sd-client (working) and odl-client (not finished yet) in my Github which could be used for multi controller support.