updated the README for simplicity until we make some changes to the client
put the basic auth methods back on the readme and cleaned it up
changed the wording under basic authentication for clarity
Update README.rst
Update README.rst
Update README.rst
Update README.rst
Reverted some of Travis's changes.

 - Moved Travis CI image to top (this basically the most important part for me, do my tests pass?)
 - Reverted GitHub / repo URL to smartfile.

A bit of cleanup of my own.

 - Cleaned up the sentence regarding how authentication details are handled.