Merge pull request #3 from palotas/master

Thanks for the contribution.
adding ebay logo to copyright footer.
pointing python sample link to demoproject.
providing more details around properties of DesiredCapabilities.
Simplified setup documentation.
Adding android browser to node config file selendroid-nodes-config.json.
fixing link. thanks smccarthy for the bug letting me know
bumping version numbers to 0.8.0
Updates to incorporate 0.8.0 version to docu. Main changes are:
- the port number is now 4444 instead of 5555
- the SelendroidCapabilities can be used in a simplified way.
Adding details about node config based on this request: https://github.com/selendroid/selendroid/issues/208#issuecomment-34302778
rephrased some sections to be more readable