Fix test requirments.

Package names listed in test-requirements should be python
packages not rpm packages.

Change-Id: Ia03df4ff728b56528b72dec5d53f9edc3cac3b6e
Update README to Add Travis-CI status icon.

This icon shows build status of the project.

Also change README to markdown format which is supported
by github.

Change-Id: I2a266da9b603d48398989c5ebd69dfaae44a7bfa