Add .travis.yml file
Merge branch 'master' of github.com:carschar/m2pycrypto

* 'master' of github.com:carschar/m2pycrypto:
  Update README.md
Merge branch 'master' of github.com:carschar/m2pycrypto

* 'master' of github.com:carschar/m2pycrypto:
  Fixed Travis-CI build status icon